fygjam Posted April 14, 2022 Share Posted April 14, 2022 Unless they say they're washable, they ain't. Can you clean a HEPA filter? If you see visible buildup of dust or particles on a HEPA filter (it may look gray or dirty) or observe reduced airflow through your portable air purifier, you may assume that’s an indication the HEPA filter needs cleaning. However, experts say HEPA filters should always be replaced rather than cleaned. “You cannot clean a HEPA filter by using something like a vacuum because the particles are trapped not only on the surface of the filter, but also deep inside the media,” Bloemer says. Don’t even think about running it under your sink, either—liquids like water and soap will destroy the filter media, he adds. When you’re seeing buildup on a HEPA filter, that’s all the captured particles, which can range from particles generated from combustion (think car exhaust, gas stoves, and candles) to mold spores and animal dander, says Ted Myatt, ScD, senior scientist at Environmental Health & Engineering. These particles can be generated indoors or outdoors and migrated through open windows, wall joints, or cracks. It may sound counterintuitive, but on one level, a HEPA filter may work better when it has a thin, caked-on layer of collected particles—but at some point, air will have a hard time getting through the filter, Myatt says, which means the filter needs to be replaced. The one exception to replacing a HEPA filter when it’s dirty is if you have an air system that has a prefilter in front of the HEPA filter, Negron says. This prefilter will capture some of the larger dust and particles, and some of these prefilters are washable to enable you to remove the dust and debris they collect—note that this is not the actual HEPA filter, though. Again, experts agree that HEPA filters should always be replaced when dirty, not cleaned. https://www.realsimple.com/home-organizing/cleaning/hepa-air-filter-cleaning 2 Link to comment Share on other sites More sharing options...
CampariO Posted April 14, 2022 Share Posted April 14, 2022 (edited) Using a vacuum cleaner with a hepa filter also helps to keep the dust away and whatever is there with it. If your kitchen is open plan, switch off the air purifier before frying a steak or similar, otherwise the indication will go up to 400 or so. Open the windows and air/ventilate the room, then switch it back on. Otherwise I imagine the filters won't last long. Edited April 14, 2022 by CampariO 1 Link to comment Share on other sites More sharing options...
fforest Posted April 14, 2022 Share Posted April 14, 2022 (edited) 1 hour ago, fygjam said: Unless they say they're washable, they ain't. Can you clean a HEPA filter? If you see visible buildup of dust or particles on a HEPA filter (it may look gray or dirty) or observe reduced airflow through your portable air purifier, you may assume that’s an indication the HEPA filter needs cleaning. However, experts say HEPA filters should always be replaced rather than cleaned. “You cannot clean a HEPA filter by using something like a vacuum because the particles are trapped not only on the surface of the filter, but also deep inside the media,” Bloemer says. Don’t even think about running it under your sink, either—liquids like water and soap will destroy the filter media, he adds. When you’re seeing buildup on a HEPA filter, that’s all the captured particles, which can range from particles generated from combustion (think car exhaust, gas stoves, and candles) to mold spores and animal dander, says Ted Myatt, ScD, senior scientist at Environmental Health & Engineering. These particles can be generated indoors or outdoors and migrated through open windows, wall joints, or cracks. It may sound counterintuitive, but on one level, a HEPA filter may work better when it has a thin, caked-on layer of collected particles—but at some point, air will have a hard time getting through the filter, Myatt says, which means the filter needs to be replaced. The one exception to replacing a HEPA filter when it’s dirty is if you have an air system that has a prefilter in front of the HEPA filter, Negron says. This prefilter will capture some of the larger dust and particles, and some of these prefilters are washable to enable you to remove the dust and debris they collect—note that this is not the actual HEPA filter, though. Again, experts agree that HEPA filters should always be replaced when dirty, not cleaned. https://www.realsimple.com/home-organizing/cleaning/hepa-air-filter-cleaning I said a light (as in light) wash with water and no scrubbing....Which is what is recommended for a HEPA cleaning...... Which works fine between yearly replacements...... I already looked into this and many manufactures say exactly this.... I have done this with no problem... Edited April 14, 2022 by fforest Link to comment Share on other sites More sharing options...
tommy dee Posted April 14, 2022 Share Posted April 14, 2022 1 hour ago, CampariO said: Using a vacuum cleaner with a hepa filter also helps to keep the dust away and whatever is there with it. If your kitchen is open plan, switch off the air purifier before frying a steak or similar, otherwise the indication will go up to 400 or so. Open the windows and air/ventilate the room, then switch it back on. Otherwise I imagine the filters won't last long. its also a good idea to turn the ac off. the only unit in my house that clogs is the one in the kitchen, and we have two extracter fans. they just grease up. quite a job to degrease too. as to the hepa filters, unless II am mistaken, part of the filter is actually sticky, designed to catch and grip dirt. so washing wouldnt be a good idea as the glue would wash off too. i am guessing, like a car air filter, you could vacuum or bang against a wall between changes tho Link to comment Share on other sites More sharing options...
Glasseye Posted April 14, 2022 Share Posted April 14, 2022 2 hours ago, CampariO said: Using a vacuum cleaner with a hepa filter also helps to keep the dust away and whatever is there with it. If your kitchen is open plan, switch off the air purifier before frying a steak or similar, otherwise the indication will go up to 400 or so. Open the windows and air/ventilate the room, then switch it back on. Otherwise I imagine the filters won't last long. My lungs must look like a slab of bacon then.... lol I've thought for a few years now .... if I haven't died from - a car wreak, gun shot, or foul ball, then most likely lung cancer or a virus would eventually get me. Go figure. Of course most of us will end up six feet under due to heart failure. Fine by me.... I just hope that the hottie riding my horsy gets over the trauma reasonable soon after. 2 2 1 Link to comment Share on other sites More sharing options...
john luke Posted July 29, 2022 Author Share Posted July 29, 2022 Looking out today, my subjective impression is that it is as clear a day as there has been for some time. Photographs have not been sharpened, de-hazed or any thing. The only post processing has been straightening each image. 2 Link to comment Share on other sites More sharing options...
fforest Posted July 29, 2022 Share Posted July 29, 2022 3 hours ago, john luke said: Looking out today, my subjective impression is that it is as clear a day as there has been for some time. Photographs have not been sharpened, de-hazed or any thing. The only post processing has been straightening each image. Not much smog for a long while.....Not every day is super clear but also no really bad days..... 2 Link to comment Share on other sites More sharing options...
forcebwithu Posted July 30, 2022 Share Posted July 30, 2022 Enjoy the clean air days while they last. About four months to go until I need to turn my air purifier on again. https://www.iqair.com/thailand/chon-buri/pattaya 1 Link to comment Share on other sites More sharing options...
fforest Posted July 30, 2022 Share Posted July 30, 2022 (edited) 59 minutes ago, forcebwithu said: Enjoy the clean air days while they last. About four months to go until I need to turn my air purifier on again. https://www.iqair.com/thailand/chon-buri/pattaya I run my air purifier all the time.....It collects a amazing amount of dirt....I just changed the filter, it was about 8-9 months old, and it was black black with dirt... Good price on Shopee 265 baht https://shopee.co.th/🚩พร้อมส่งแผ่นกรองอากาศ-HEPA-Filter-สำหรับเครื่องกรองอากาศ-SHARP-FP-J30TA-FP-J30-FP-F30TA-FZ-F30HFE-i.141264559.6354914672 I now have 2 carbon filters on top of the Hepa filter....The carbon filters are super easy to wash.... Edited July 30, 2022 by fforest 3 Link to comment Share on other sites More sharing options...
tommy dee Posted July 30, 2022 Share Posted July 30, 2022 4 hours ago, fforest said: I run my air purifier all the time.....It collects a amazing amount of dirt....I just changed the filter, it was about 8-9 months old, and it was black black with dirt... Good price on Shopee 265 baht https://shopee.co.th/🚩พร้อมส่งแผ่นกรองอากาศ-HEPA-Filter-สำหรับเครื่องกรองอากาศ-SHARP-FP-J30TA-FP-J30-FP-F30TA-FZ-F30HFE-i.141264559.6354914672 I now have 2 carbon filters on top of the Hepa filter....The carbon filters are super easy to wash.... we were doing the same, but right now the house is clear of smut. when on they dont even register much so switched off but we DO have ac on 24/7 that filters too, but not as well by far Link to comment Share on other sites More sharing options...
Pumpuynarak Posted July 31, 2022 Share Posted July 31, 2022 So can anyone recco a good air purifier thats available online in Thailand ? i particularly would like one that can handle "smoking" as i indulge occasionally in my mancave. Link to comment Share on other sites More sharing options...
forcebwithu Posted July 31, 2022 Share Posted July 31, 2022 15 minutes ago, Pumpuynarak said: So can anyone recco a good air purifier thats available online in Thailand ? i particularly would like one that can handle "smoking" as i indulge occasionally in my mancave. Start with the linked post below for a discussion on different purifiers. 2 Link to comment Share on other sites More sharing options...
fforest Posted July 31, 2022 Share Posted July 31, 2022 (edited) 39 minutes ago, Pumpuynarak said: So can anyone recco a good air purifier thats available online in Thailand ? i particularly would like one that can handle "smoking" as i indulge occasionally in my mancave. Well it depends if your looking for Toyota or Mercedes quality.... I am pretty happy with my low cost Sharp air purifier here...It has been running 24/7 for well over a year with no problems and cleans the air great... SHARP FP-J30TA-A https://www.homepro.co.th/p/1094134 Edited July 31, 2022 by fforest 1 1 Link to comment Share on other sites More sharing options...
Pumpuynarak Posted July 31, 2022 Share Posted July 31, 2022 1 minute ago, fforest said: Well it depends if your looking for a Toyota or a Mercedes quality.... I am pretty happy with my low cost Sharp air purifier here...It has been running 24/7 for well over a year with no problems and cleans the air great... https://www.homepro.co.th/p/1094134 Well from my investigations it would appear that very few air purifiers can cope with tobacco smoke but one that i did identify is not available in Thailand, it was'nt cheap but did the job evidently. Link to comment Share on other sites More sharing options...
forcebwithu Posted November 9, 2022 Share Posted November 9, 2022 Walking the dogs this evening and could smell a good amount of smoke in the air. No surprised when I checked the AQI site it reported this. 1 1 1 Link to comment Share on other sites More sharing options...
john luke Posted November 12, 2022 Author Share Posted November 12, 2022 Mist in the distance today, despite very bright directional sunshine. 1 Link to comment Share on other sites More sharing options...
tommy dee Posted November 12, 2022 Share Posted November 12, 2022 Sadly the mist is actually haze and its beginning of the annually expanding smog season. AQI checks after 10 ish see improvements, at 4.30 thru to just after sunrise it is at its worst. this week already often well over 100 and above BKK even and rayong and prachin. Lotus sell room filters ( HEPA) for very little, if you have a big room, simply buy 2. watch them work, its amazing. plus for those of us who sleep with windows open for fresh air inthe cool season, thats not the cleverest of things to do now. sadly 13-15 yrs ago, smog was not an issue here, skies went for miles and miles but its well fucked now and the blame is cast on everything except industry 2 Link to comment Share on other sites More sharing options...
forcebwithu Posted January 9, 2023 Share Posted January 9, 2023 12 hours ago, john luke said: Normally in an afternoon, when one looks away from the sun, along the coastline from the Beer Garden, there is very little if any mist. This afternoon was an exception. Look how clear and sharp the boat is compared to the large buildings behind. AQI was 77, which is described as moderate. A different story today. 1 Link to comment Share on other sites More sharing options...
john luke Posted January 9, 2023 Author Share Posted January 9, 2023 8 minutes ago, forcebwithu said: A different story today. Why such a large variation over 24 hours? Link to comment Share on other sites More sharing options...
forcebwithu Posted January 9, 2023 Share Posted January 9, 2023 2 hours ago, john luke said: Why such a large variation over 24 hours? Probably a change in surface and upper level wind direction. Could also be the remnants of a nighttime inversion layer. Probably the later as with the increasing day time temp the inversion layer has dissipated and AQI is dropping. Link to comment Share on other sites More sharing options...
john luke Posted January 11, 2023 Author Share Posted January 11, 2023 Link to comment Share on other sites More sharing options...
Glasseye Posted January 11, 2023 Share Posted January 11, 2023 2 hours ago, john luke said: Figgen lovely. Another hazy lazy day in Pattaya. Offers a good explanation for heavy day-time drinking.... When you're smashed you won't notice the ambiance. And at night you can't see it anyway. Link to comment Share on other sites More sharing options...
tommy dee Posted January 11, 2023 Share Posted January 11, 2023 dawn is the worst here. regularly at 7am it is 186. later around 11 it may drop to 100 or below 2 Link to comment Share on other sites More sharing options...
Stillearly Posted January 11, 2023 Share Posted January 11, 2023 8 hours ago, Glasseye said: Figgen lovely. Another hazy lazy day in Pattaya. Offers a good explanation for heavy day-time drinking.... When you're smashed you won't notice the ambiance. And at night you can't see it anyway. What the air quality like in CM at the moment? Link to comment Share on other sites More sharing options...
maipenrai Posted January 12, 2023 Share Posted January 12, 2023 The air is thick here in Jomtien today - you can see it hanging in the streets; also very muggy. 1 Link to comment Share on other sites More sharing options...
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