Manufacturers and suppliers of ventilation and euro hardware products; trickle ventilators to window handles, locking and hinge systems to mechanical ventilation products. BPD Store stocks Passivent’s range of window tricklevents. . W. Glidevale Protect offers a wide selection of roofing ventilation products suitable for all tile and slate roofs. 50 a set, conform to Building regulations. What was surprising was the result of testing the ‘acoustic’ slot vent, for which a 35dB reduction was claimed. News: Titon Appoints New CFO. Visit our website now. 16 years ago. The drawing they have provided is an over the frame vent, and not typical. We also offer the acoustic window trickle vent range in a selection of anodised finishes. £3. Tried to get the same stuff, but now trickle vents are required. As acoustic experts, we do not recommend trickle vents. Choice of slot size. Trickle vents provide effective background ventilation in a home, which may help to minimise the severity of health problems like. Availability: Item stocked in our warehouse. Glidevale TVUG25 External Canopy Grille – BIM Object. It can be locked in the minimum as well as maximum flow position. One of the most popular choices for passive ventilation. Whilst trickle vents are published with acoustic values this can often be misleading due to the criteria on which they are valued. g. • Multiple trickle vents may be required to meet minimum airflow requirements. uk +44 (0)28 9061 6505SF Xtra Sound Attenuator (Acoustic) Vent FOR USE ON PVCU, TIMBER OR ALUMINIUM WINDOWS. Glidevale Protect TVES4dB Acoustic Energy Saver Humidity Sensitive Trickle Vent - Trickle Vent . You can get acoustic trickle vents that are supposed to reduce sound from outside. Trickle vents are by far the cheapest and most practical solution to achieve the regulations for both new build and replacement markets. Through Frame Trickle Ventilators, Acoustic Trickle Ventilators and Vent-A-Matic provide options to suit a range of needs. As one of the market leaders in tile ventilator manufacture in the UK, Glidevale Protect’s range has been collated for over 35 years and includes hundreds of dedicated profiled tile ventilators matching almost. £7. Trickle vents also work in conjunction. THIS AREA IS CURRENTLY BEING UPDATED – PLEASE FEEL FREE TO DOWNLOAD BROCHURE FOR FULL INFORMATION>. The XS13 is a direct replacement for the S13 range, using the same slot measurements but offering a much. More about us. The 13/16” dimensions are always constant; therefore the body length is always 1-5/8” shorter than the overall length. Sometimes the best way to achieve the best acoustic performance in new build applications is to upgrade from a traditional ventilation strategy, e. The use of W dB would just clarify they are measuring a power instead of an amplitude, which could mean the difference of a factor of 2 in the dB. Many homeowners, architects and double-glazing companies prefer to avoid trickle vents as they can affect a property’s overall aesthetics, energy efficiency and acoustic performance. The aesthetically pleasing and patented design helps to reduce the visibility of the trickle vent on a window. People feel the draught and close the vent or think the room loses its heat. R. + VAT. White internal finish as standard. uk +44 (0)28 9061 6505 GB All acoustic vent models have been independently tested in accordance with BS EN ISO 717-1:1997 (airborne sound insulation & BS EN 20140-10:1992) The Simon Acoustic vent canopy is available in white (RAL 9910 HIPCA satin), brown (RAL 8019 matt), black (RAL 9005 matt), tan (RAL 8003 matt), grey (RAL 7016 matt) and silver anodised as standard. Available in 3 external cowling colours. Four intermediate settings. These may be required by building regulations in. Range includes:2500EA4000EA5000EAInternal Vent Yale brandedPre-fitted clipsVent can be tilted 30. Acoustic SL (Slimline). 5. As the name suggests, these are trickle vents with added insulation. New trickle vents are being launched to offer. Surface mounted window vents are specifically designed to operate in conjunction with a routered airflow slot through the frame or sash. It is the shortest ventilatior available on the market capable of provding an Equivalent Area (EA) of 5000mm 2 and can be fitted with a plastic or aluminium canopy. VAT. Add to Basket. Sound proofing with triple glazing. These can be large and not aesthetically pleasing but are essential so as not to compromise the soundproofing of your acoustic glass. By buying this product you can collect up to 27 loyalty points . With its built in updraught and various operating modes the TTF Slimline is suitable for all types of windows. Automated control of differential pressure provides your house with a proper volume of air and, in addition, considerably reduces thermal. The Acoustic Window Trickle ventilation range offers a noise reduction of up to 41db which can now make it possible to obtain planning permission for new developments near a busy road, train line or an industrial site that would otherwise have been refused. In reply to Lewis and Stevie, Builder can use better trickle vents and there are Acoustic Trickle Vents available, if Builder will not come back a local glazing company should be able to help. . Acoustic trickle vents often involve totally different window frames or bolt on additional sections, I'd be surprised if you can find direct replacements. The Acoustic Energy Saver Humidity Sensitive (TVES4dB) and the Acoustic. This includes products such as the surface mountable SM Acoustic window vent, which offers an acoustic reduction of up to 40dB while open. A trickle vent is a very small [quantify] opening in a window or other building envelope component to allow small amounts of ventilation in spaces intended to be naturally. Most types of vent are available in a choice of colours to best suit the window frame and be as unobtrusive as possible. Flush fit | Brown ABS Plastic | 300mm long x 20mm wide x 10mm deep (2,700 mm2 free area). £3. From optimal and subtle integration in your façade to maximum living comfort thanks to the self-regulating non-return valve and acoustic damping: our R&D makes all the difference in your everyday life. 00 Standard Delivery 2-3 Working Days inc. The acoustic Trickle Vents can also be powder coated to any standard RAL colour. Glazpart has taken trickle vents to a whole new level with the Link Vent Mk2 5000! It boasts a compact, low-visibility design with a. VAT. When the vent was removed, leaving just the opening, thereGreenwood Acoustic Vents. Trickle vents must be left in the ‘open’ position to provide ventilation; Bear in mind that with uncontrolled ventilation, moist air and odours are spread around the home, often condensing in, or on, the fabric of the building. We do get asked how to cure damp and mould around windows and the first question we ask is "what ventilation do you have in the room". Acoustic vents are now available. Acoustic options with enhanced sound reduction up to 50dB. Acoustic block ventilators are large, aesthetically unattractive and often cannot be accommodated. In reply to Lewis and Stevie, Builder can use better trickle vents and there are Acoustic Trickle Vents available, if Builder will not come back a local glazing company should be able to help. Window ventilation is essential, and is also enforced by the building regulations. € 39. Burglar-proof performance is desired in some cases. Using trickle vents in every room to provide background ventilation is never a bad thing. The main performance concerns of Trickle Vents are the ventilation rate, thermal insulation, acoustic resistance, water tightness, and air permeability. Core drilled – suitable for retrofit installations. The kitchen has an extractor vent , also a vent for the boiler and trickle vents on the double glazed windows. Proposal It has been proposed to redevelop the former Maybloom Club site, Bostall Hill, London, SE2 0RA, toSlimline vent design has clever two stage opening. Habitable rooms and kitchens: 8000mm2 EA. You’ll also find clear plastic window ventilators that fit directly into the glass. Now, firstly, I know trickle vents are installed to ensure a property stays ventilated, etc, but mine are driving me mad! I honestly don't see the point in having double glazed windows that the benefits of which are to be energy and noise efficient, then whack a hole in the frame that negates the benefits of both!Cover the sides and top and bottom of your air vent with acoustic foam as you go. Extract fans in bathrooms and trickle vents in windows, to a central extract system, mechanical extract with fewer - sound attenuating – vents, or all the way to mechanical ventilation withby Renson Fabrications. Acoustic trickle vents. There are two width variants, one for use over a 13mm slot, the other for a 16mm slot. However, the changes will not apply in relation to building work where a building. 250-368mm L with air brick fitted. Trimvent® Select Xtra S16. Here, you can find the fitting instructions for the Glazpart range of trickle vents used to deliver the required provision of back ground ventilation in dwellings. A surface mounted aluminium slot ventilator, the Titon SF Xtra Flat Fit Vent is ideal for new-builds or to be retro-fitted. Available in 2500EA or 5000EA with the option of 1 or 2 Acoustic External Modules fabricators have a variety of solutions to achieve their required specifications. The new regulations in regards to trickle vents just seems very backwards. I find them more of a hinderence than anything and was wondering if anyone has any experience with ‘filling them’. Installing a background ventilator through a wall that provides the equivalent areas described in Approved Document F, volume 1 can be an. Features a slim line design with two stage opening with the benefits of sound insulation. 99. Buy Air Vents at Screwfix. WHITE 400mm Trickle vents from just £3. stabilised PVCu, it reflects the growing. Our cutting-edge technology is used to assist people in their needs to curb noise pollution and to enjoy peace and quiet. In noisier locations, such as near a busy road or an airport, the trickle vent can be designed with additional acoustic options giving even more noise reduction benefits. Acoustic Window Vent. 8,400mm² (84cm²) equivalent area. These are areas such as kitchens, bathrooms, utility rooms etc, where appliances, showers and baths produce large amounts of moist, damp air which needs to be expelled from the room. Stainless Steel Door Handle . Trickle vents are activated with a single finger and provides passive. if you have trickle vents in these rooms then they should be acoustic, otherwise you are circumventing the expensive windows you have just specified/fitted. If you already have pieces of egg crate pattern acoustic foam lying around, you can use them to plug your air vent. Trickle ventilators provide ventilation to the room without the need to open the main window, reducing noise levels as a consequence. Up to 29 db Dne W. RW Simons Ltd PVCu Trickle Vents range is called Framevent and is the latest addition to our extensive range of window ventilators. The room must achieve an internal noise level of 35 dB(A) over the duration of the measurement period. £3. When acoustic ventilation is required this should also be considered at the design stage, as the noise factor may actually pre-determine the method of ventilation that will be used within the dwelling. Core drilled – suitable for retrofit installations. Acoustic windows and glass are NOT a 100% soundproofing window solution but you can achieve considerable noise reduction. Free postage. AAC125HPCWL. 55,000mm² equivalent area and space on the window profiles can sometimes be an issue. 29 Inc Vat. RW Simon are one of Europe's leading suppliers of domestic air management systems. The latest additions to our acoustic offering is the Tunal Range which represents a series of on the frame and. If a property is located in a noisy area, near a busy road or airport, a noise attenuating ventilator (acoustic vent) can be used. Replacement windows should be fitted with trickle vents regardless of whether the windows being replaced had vents in them or not if no background ventilation alternative is being installed. Learn More . Acoustic performance tests by BRE Acoustics. The short answer is no, you do not need trickle vents if you have a full mechanical ventilation and heat recovery system. The RW Simon Ltd TTF Slimline window trickle ventilator is a through frame trickle ventilator that is a robust, yet stylish aluminium ventilator. Download. Acoustic Ventilation is used in rooms which require ventilation but still a high level of soundproofing. Contact Your Account Shipping &. Browse 10 free BIM objects and Revit families that are ready to use on your projects. You would also need trickle vents to meet the permanent ventilation requirement as per the building regulations. Unfortunately, moisture in the air is common in everyday living and it needs to go somewhere and we need changes of air too. Table 3. White. The link vent is our latest and most advanced trickle vent and the instructions are provided for the shorter 2500 (EQA) vents and its big brother the 5000 (EQA). Trickle ventilators. Resources. 57 Ex. Enquire now, call 01805 623721. £7. TTF Slimline Ventilator. 2500EA routing slot size: 192 x 13mm. stabilised. Window Vents & Trickle Vents | Zehnder Group UK | Zehnder Group UK Ltd Window vents, also known as trickle vents, are an effective way to improve indoor air quality in. The glass thickness. 89. Aereco develops innovative ventilation solutions for residential and office buildings with a key concept: the modulation of airflow rates according to. Acoustic trickle vents now make it possible to obtain planning permission for new developments that are situated near a busy road, train lines or an industrial site that would have been refused. A trickle vent above a French door is small and narrow in comparison. Just because you cover the vent. It is the shortest ventilatior available on the market capable of provding an Equivalent Area (EA) of 5000mm 2 and can be fitted with a plastic or aluminium canopy. Inc. Add to basket. favorite_border. (closed to trickle), max 40m 3/hr. RW Simon Trickle Vents. The trickle vent is constatntly closed due to the noise, will an acoustic vent be a significant improvement on a closed vent or only compared to an open basic vent. Glidevale ALDB Acoustic Trickle Ventilator 4500mm - White. If you live near a busy road or an airport, trickle vents can be designed with additional acoustic options to give even more noise reduction benefits. 98, Chase CB £107. 5mm (2500EA) 215mm (5000EA) 29. Kitchen and Bathrooms are good locations for the use of trickle vents because of the condensation problems, but. Trickle facility to allow air ingress even when closed. 1,394 posts. Ventilation is routed over the frame or head of the window. trickle vents are discretely covered with a “head drip” Standard trickle vents are white but it is possible to colour match trickle vents as an option. VAT. Concealed and surface-mounted. People feel the draught and close the vent or think the room loses its heat. Optional SoundOUT sound diffuser box can be fitted to minimise the transfer of noise through the vent. Welcome to the HandleStore range of trickle vents for the replacement of existing, tired, missing or broken slot vents found on double glazed windows. I discuss sound mazes in more detail in the article linked above, but watch this video for steps on how to build a sound maze. 400mm. The concept of ‘acoustic ventilation’, and the technology behind all Silenceair® products, focuses on allowing air to freely enter and circulate in our buildings, while keeping noise out. Vent-Axia's large range of products are available for a wide variety of purposes and surroundings. stabilised UPVc. Trickle vents ; Trickle vents. if you have trickle vents in these rooms then they should be acoustic, otherwise you are circumventing the expensive windows you have just specified/fitted. The vent has one of the highest decibel ratings on the market for a non-acoustic vent. 2 Year Guarantee. Where high acoustic performance is required trickle vents should be avoided as they will have a detrimental effect. Find and specify trickle vents from top manufacturers with NBS Source. Slot Size: 2no x 13-17 x 135mm. The primary purpose of trickle ventilation is to remove polluted indoor air from a building and replace it with ’Fresh’outside air. From manufacturing the first dMEV classified product in the UK in 2007 to our latest release aligned to the 2021 UK Building Regulations, our approach has always been set on delivering a low-energy performance product which. Available in 3 external cowling colours. In addition, acoustic. VAT) Plastic trickle vents with fingertip vent adjustment. We specified a mix of double and triple glazing across the build, and also installed both standard VELFAC vents (concealed within the. • Internal controllable trickle ventilator. 'usually' trickle vents in upvc/alu are 'in frame' as shown below (its the horizontal bar on the top of the frame) Passivent’s range of natural ventilation products includes wall and window ventilators and roof mounted ventilation terminals, all of which can be linked to an intelligent or stand-alone control system. By buying this product you can collect up to. Our aluminium vents (look for the reference VAL) have thermal seals to stop draughts when closed. This makes the vent even easier to use. Then press that piece back to back against another one. Available in white or brown. VAT)*. Ventilation is there to improve the quality of life inside houses and offices, which is why our vents – either trickle vents, through-frame vents, over-frame vents, or glazed-in vents – are designed to keep outside noise. New building regulations that come into effect from 15 th June 2022 have implications for any windows that are installed after this date. 70 . Trickle vents ruin any acoustic performance gains. Silenceair®offers a range of soundproof wall vents, ceiling vents and cross talk vents that allow air to circulate freely and silently through your building. Environmental Noise Assessment K. If the windows are modern double glazing with trickle vents, it may be beneficial to replace the vent covers with acoustic trickle vent covers. Titon Trickle Vent Trimvent S13 2700EA. Ex. Roofing ventilation. Habitable rooms and kitchens: 8000mm2 EA. Controlled airflow without opening windows can reduce noise, ideal for urban or noisy environments. £395. • Night vents do not count and cannot be used as a method to provide background ventilation. Up to 40 db Dne W. Complete with a thermal foam seal, a 10mm slot size and sleek rounded external hood it is the perfect slimline surface mounted vent solution. Generally, to gain maximum performance, the size of the acoustic attenuator should be mirrored on the vent and canopy; and. acoustic result. For effective ventilation, our Rose Collection sash windows are available with trickle vents fitted to the top of the sash. Your cart will contain total 27 points that can be converted into a voucher of £2. Condensation reduction; If your home has a problem with. Other finishes available depending on quantity. redeem. Summary 1. Another advantage of Titon’s metal trickle vents is that they are designed to fit over the same slot detail (13mm or 16mm slot), making an upgrade a simple swap. 02 Please note the Vent Units or the Canopy Units can be fitted in conjunction with the Greenwood Acoustic window ventilator (White ) Quantity. This SlimVent and Canopy set from Yale is a part of our comprehensive range of trickle vents that enables window and door manufacturers to meet the requirements of the latest revisions to Building. Trickle ventilation system. Glidevale Protect TVES4dB Acoustic Energy Saver Humidity Sensitive Trickle Vent - Trickle Vent . Achieves Building Regulations’ EA requirements. Trimvent XC16 uPVC/Timber Window Vent - Canopy - 312 x 16mm - White. Glidevale ALDB Acoustic Trickle Ventilator 4500mm Add to Basket. Ventilation in windows and doors must extract excess water vapour, air pollutants and condensation. As I type this. [report] [news] Monday 29th January 2018. The Trickle Vent brings you the Sonovent Acoustic Solution which was developed to meet the two aspects of living comfort: Physical Comfort – fresh and healthy air without draught; Acoustic Comfort – up to 56 dB noise reduction; There are also four types (S/M/L/XL) with four possible air gasps (10,15,20 or 25 mm). Trickle Vents - Flush Fit (White - 430mm) £ 9. Titon is pleased to announce the promotion of Carolyn Isom to the Titon Holdings Board as Chief Financial Officer. Trickle Vents - Flush Fit (White - 300mm) £ 5. Glidevale TVES4dB Acoustic Energy Saver Humidity Sensitive Trickle Vent – BIM Object Download. Verified 3 months ago . The latest addition to the Simon Acoustic Range - Please get in contact for more. Titon Hardware Ltd. This is particularly important in areas where this is more likely to happen, including. The latest addition to the Simon Acoustic Range - Please get in contact for more. • Trickle vent • Acoustic trickle vent • Acoustic tile board • Shaped corners H All windows are supplied fully assembled and ready to install. Trickle vents provide ventilation to any room without needing to open the window, which reduces external noise levels. About this product. Ideal for both timber and PVCu, the Framevent has been specifically developed for the volume market. co. 57 Ex. They may be an excellent solution to cope with the current regulations but if the issue is noise, they can also. The purpose of trickle ventilators is providing a consistent flow of fresh air. Use code 500Save 💵 Links. Continuous Ventilation offers an all round low energy, low noise solution for tenants - and it protects the building effectively. 78 (ex. 2060 (1) 2200 (1) 2500 (2) 4000 (2) 4300 (1)Acoustic laminated glass; Sash Horns. Acoustic STC –TV250 Vent and Canopy – open 35dB – closed 49dB. Suitable for bedrooms and other rooms where low noise levels are a priority. Greenwood Acoustic window ventilator (White ) Quantity. VAT. The overall vent length. Really bummed out about this. Acoustic trickle vents now make it possible to obtain planning permission for new developments that are situated near a busy road, train lines or an industrial site that would have been refused. Your Price Apply / Login. Trimvent® Select Xtra S13 is a surface mounted plastic slot ventilator that fits over a 13mm slot in a window and provides an Equivalent Area (EA) of 2000mm2, 4400mm2 or 5000mm2. Acoustic performance of 33 Db and an EA rating of 4600, the V4000 is great value and available from stock for next day delivery. Features Substantial sound reduction up to 50dB Dn,e,w. Five intermediate settings. Trickle vents prevent airflow when closed, and when open they allow a small amount of air to circulate around the room. Quick Overview. There are two width variants, one for use over a 13mm slot, the other for a 16mm slot. Damp Weather Shutoff – dual control adjusts. Nineteen different Trickle Vents are reviewed from some of the performance aspects in this paper. The VELFAC acoustic trickle vent ensures both fresh air and noise reduction when combined with VELFAC SOUND windows. Acoustic STC – S13 4000 vent – open 33dB – closed 45dB Acoustic STC – XS13 412 vent – open 32dB – closed 41dB Acoustic STC – XS13 497 vent – open 32dB – closed 35dB . £5. Share. Customers have expressed concern about acoustic insulation, but a home can be ventilated without the window being opened. co. The first stage of the acoustic assessment described by ProPG is to. The RW Simon Ltd Framevent HF (hi-flow) achieves 4,191mm2 EA on a length of only 415mm & the HF + (hi-flow +) achieves 5205mm2 EA on a length of 525mm. Windows can be new or already installed, our trickle vents fit with almost all window types. View. You can get acoustic trickle vents for windows which apparently stop sound much better than ordinary ones. Duco Acoustic Ventilators. BIM object . Installing acoustic vents can help to reduce the noise coming from trickle vents, making it easier for people to relax and enjoy their space. Inc. If you still think opening a window is the best way. Ironically, the spare bedroom (which faces a railway line) has acoustic vents through the wall rather than trickle vents through the window frames and it is. 07 Jan. 1000 Pa. airvent SM 1000+ Trickle Ventilation. The SM 1000+ is a slim, unobtrusive surface mounted window vent that offers trickle ventilation. Donald BSc (Hons) AMIOA T: 0330 043 1764 Page 4 of 24 1. Find out how to easily retrofit a trickle vent to your door with our step by step video to guide you. Trickle vents also add enhanced sightlines, which is a key priority to customers. 1. The main performance concerns of Trickle Vents are the ventilation rate, thermal insulation, acoustic resistance, water tightness, and air permeability. The main performance concerns of Trickle Vents are the ventilation rate, thermal insulation, acoustic resistance, water tightness, and air permeability. Yeah, it might be the same mechanism as what they use for mufflers (in which you have a. The EAQ42W is one of the best performing acoustic window ventilators available in the UK. Ventilation building regulations have recently changed in England and Wales. Attenuated natural ventilation options. Classification Pr_30_59_94_90. Removable cover pannel conceals Ventient trickle ventilation unit. Proposal It has been proposed to redevelop the former Maybloom Club site, Bostall Hill, London, SE2 0RA, toSlimline vent design has clever two stage opening. Trickle Vents; Titon SF Xtra 13 Vent 465 x 23mm - White; Zoom. 75 (£14. Suitable for replacing vents in windows. 144 sold. Wasn't sure where to post this ! We moved into a new house in June2010, when it started getting colder we closed the trickle vents on all the windows but still have a draught coming through them. 9 February 2017 at 8:58PM. Quantity. Resources. When used correctly, trickle vents do not contribute excessively to heat loss. a background ventilator such as a trickle vent. This is a type of acoustic soundproofing. Titon SF Xtra Flat Fit Vent (surface mounted). Trimvent® Select Xtra S13 FOR USE ON PVCU, TIMBER OR ALUMINIUM WINDOWS. Internal baffle reduces light and draughts. Greenwood 5000EAW. Unique tilting T-bar variable opening. Meets World Health Organisation recommended reduction of 33dB. The latest addition to the Simon acoustic range. View. Our range of acoustic window trickle vents provide a cost effective solution to suit the needs of noise polluted sites. VAT) Plastic trickle vents with fingertip vent adjustment. It can be seen that the noise through the trickle vents dominates the overall levels, and a higher performance of the trickle vent would be required in the 500 Hz and 1 kHz octave bands if lower internal levels are sought. VAT. Horizontal strip, aluminium ventilator for windows with internal adjustable flap for airflow control. MA3051 ACOUSTIC VENTILATOR. Trickle ventilators (or trickle vents) provide this effective background ventilation for a home, contributing to a healthy living environment by enabling unobtrusive and controllable whole-room ventilation. Passionate Indoor Air Quality Experts. Skip to content +44 (0) 1732 850770 projects@passivent. . Most importantly, it influences the health of those who live and work in the building. 5mm (5000EA) 438mm (5000EA) Illustrations show 2500EA version SF Xtra Sound Attenuator Vent Fixing and Operating Instructions BM504 Iss. W. A trickle vent is also included. ACOUSTIDRAIN. CLOSED. RW Simon Ltd has an extensive range of Trickle Vents ranging in all different sizes to help achieve the amount of free area or equivalent area required to naturally ventilate a building in order to conform to building regulations, our range includes both. Trickle Vents - Flush Fit (Brown - 300mm) £ 5. Q. 00. The SM 1000 Trickle Vent is a slim, unobtrusive trickle vent. Automatic, no user input. favorite_border. SlimVent is available in 2500mm² and 4000mm² EA ratings. 2500EA. I spoke to a window company about their acoustic glazing range. A range of ventilation rates available. Trickle Vent Options. This SlimVent & Canopy set from Yale is a part of our comprehensive range of trickle vents that enables window and door manufacturers to meet the requirements of the latest revisions to Building Regulations Approved Document F in England and Wales, and the Scottish Building Regulations October 2011 Standard 3. The Trickle Vent, Schüco VentoLife is an air purification device with a multistage filter which removes from the air up to 99. The new trickle vent regulations 2022 outline a series of criteria that must be met in order to achieve the correct amount of ventilation for a property. Suitable for bedrooms and other rooms where low noise levels are a priority.