We have owned these for a couple years now. They are wonderful! Yes, you have to be careful when you clean the delicate parts. But the air is VERY well filtered.We've owned electrostatic air purifiers before, and had real ozone problems - no problem at all with the Airdog! The things are whisper quiet on auto, except when they need cleaning. At times there might be buildup of dust before the regular cleaning time, and then, it's "snap, crackle, pop". I just take out the washable filters and everything is back to normal!I'm in California, and the fires have been horrible for our air quality. However, inside our bedrooms, the air is wonderful! The devices have easily cleaned the air of the "poopy box" smell from our 20 or so cats, so even before the fires these were a godsend.We have a HEPA filter out in our computer room, but man am I sorry I got that thing. It's not easy to clean the innards where huge dust monsters collect. We are constantly buying expensive filters - at least $120 every 6 months or so, and I don't feel it's anywhere near as good at cleaning the air as the Airdog.We are going to buy the bigger Airdog to take the place of our HEPA filter box. I have found these to be reliable, well designed, and easy to maintain. If I could give them a higher score than 5, I would in a heartbeat!

飲食店で使用。通常と異なるにおいを感知した場合、真っ赤に点灯しお知らせしてくれる。とても安心して使用しています。

コロナ禍にあり花粉症が始まる前に購入しました。外から帰ってくると数値が上昇し、すぐに吸収して数値が下がります。今年は花粉の量が多いと聞いていましたが、鼻水が多かったり、目が痒みで眠れない事は有りません。物が大きいためリビングに置いていますが夜は寝室に運ぶ事がちょっと大変ですね！（運ぶ台は一緒に購入）操作が簡単なので助かりました。

写真では、インジケーターの数字は7を表示してます。換気のために、窓を開けると。30から50位を表示。閉めると。30分くらいで一桁になります。隣の部屋で線香を焚くと、線香の香りがするときは、三桁で赤色表示。それも、30分くらいで一桁になります。部屋の大きさは何も8畳です。ウイルスを吸着してるかどうかは、わかりません。使い方としては、夜も、つけっぱなしです。満足してます。

静音性はよいのですが、除菌能力は判断できません。