(NEW) Okaysou AirMax8L 5-in-1 Air Purifier

i've only been running this for two days. two days and i had to run over here and tell you all that this is absolutely worth the money. noting that a lot of people had filter repurchase issues, i made a point of buying two replacement filters while they're in stock. when i replace those filters, i'll buy another two sets. and so on. and hopefully that will mean i never run into the problem of them being out of stock when i need them. to the unit. it's much smaller than i was expecting. i mean i read the dimensions, but it just didn't register in my brain that it was half the unit size for 100sqft more filtering power over my old air-filter. it's all plastic (good and bad) so it weighs almost nothing, making it very easy to move around, and i was able to put it on a smaller shelf in the office space than the older unit which was made of steel and had quite a large footprint. air filtering quality is awesome. my old filter was almost a decade old. since it was built air-filtration needs around the globe have exploded, and with that need, the technologies have advanced apace. this little guy packs a HUGE punch for its little footprint. and while if you're not used to having an air filter on all the time, its high setting will feel quite loud to you at 54dB, i assure you that's 4dB lower than my old unit which only filtered 230sqft with half the efficiency. that's a huge advance in fan and motor design to get that. after plugging it in the first time, figuring out where and how it place it to get the correct air draw, and leaving it running for an hour i went in to see what it had achieved. after that first hour, walking into the office there was a noticeable change, for the better, in the air quality over the room i'd just been in. There was the ever so slightest astringent smell at first, but it wasn't overpowering and it did dissipate after the first 6 or so hours, so that's not a bad off-gas for the filters themselves. when a cigarette is smoked in the room, it pulls the air towards it quite effectively, filters it and sends it back out into the room fresh as can be. enough so that i don't have to put a face mask on to breath in the room when someone is smoking. that's a noticeable improvement over the old filter where i'd have to put a face mask on and leave it on for about 10 minutes to let all the smoke in the air get filtered with the old filter. as to price. i paid over 300$ new for my old filter. it worked beautifully, while they made the filters i needed, but the filters were also 100$/ea. so, this bad boy being 100$ for the filter unit itself, and 40$ for the pair of replacement filters feels like steal when it works this well. highly recommend. and kudos to Okaysou for manufacturing and selling a cost effective and high functioning product. please continue to do so and you will have a loyal customer. UPDATE: after about 8 months of continuous operation "The Squeak" began. I disassembled the unit (yes, this voids the warranty, but since I didn't have the warranty what did I care) pulled the fan off the motor and sprayed a minimal amount of graphite lubricant into the rear side of the motor that was accessible without unmounting it from the chassis. This did absolutely nothing. Ha! I bet you thought I was going to tell you it worked a charm. I really didn't expect it to, but I was hoping I could be lazy. Disassembled it again, dug out a random can of silicone lubricant, sprayed it again. This helped, for a brief time. When the squeak reared its ugly head again I finally bit the bullet and unmounted the motor from the chassis entirely so I could access the front port and its wicking. Drowning that with 3 in 1 oil has kept it running quieter now than when it was brand new. ... "if you're gong to do a job, do it right"