@thechinglish 3.20 cubic feet is a 3.2ft tall column of air above one square foot of floor space, and it can purify 60 of these per hour. So in this 1500 sqft house, the ceilings must be 3.2x(60/1500)=0.128 feet (about 1.5 inches) above the floor.
https://en.wikipedia.org/wiki/Residence_time
Calculating how fast a fluid volume can flow through a bottleneck is not mathematically trivial. And in this case the output of the bottleneck goes right back into the volume, so it recirculates air it’s already filtered.
I have no experience with this particular brand, but Costco is selling the BlueAir 121 for about $250 as a promotional deal. I do have a few of those in the house, and love them for the amount of air that they move so quietly, which contributes to more filtration happening.
Not bashing this, or other purifier brands - I just like BlueAir’s products, and filters
@arosiriak I couldn’t find the filters on Costco.com Looks like the BlueAir comes with 2 pre-filters. Looking at the BlueAir website, the filters are $95 ($81 if you subscribe). That’s a bit ouchy for me, especially since I have big, hairy, drooly Newfoundlands.
Regarding filters, you are correct that they don’t currently offer them on Costco (they come and go), and the subscription from BlueAir can be modified to be a slower pace after you sign up (I have mine come about every 10 months). They are also some of the highest quality filters that I’ve encountered, outside of IQAir, which is an astronomical cost increase. I’m pleased with this as my happy middle ground option.
However, for the pets, the bigger deal would be the fabric pre-filter material, which is machine washable. They also include a couple in the box, so you can swap colors, or just switch while one is being washed. Or you can find alternate colors on the ‘zon if you prefer a better match to your house.
@robson I bought one on Meh a few months ago and I really like it. When I leave it on automatic and cook anything, even toast at times, it ramps up the fan.
@robson: I have one from the last time it was offered. It does a great job clearing occasional smoke leakage from my laser cutter. I also picked up 4 filters from side deal, so I"m good for a couple of years.
The filter fan kicks on high when increased dust/aerosol counts are detected, quickly eliminating them.
@IAMIS This is also my concern, but three additional filters should last a long time I think? I’m trying to find any reason to not pull the trigger here
As someone who has just bought an overpriced air purifier from home depot and loves it -$50 less than this thing- please someone talk me out of buying this
@lichen@pfd314 server room and sawdust room probably not the best combo.
…unless you are in a redneck bar (not that there’s anything wrong with that) that has sawdust on the floor to absorb spills (along with peanut shells on the floor) — and the server is someone that brings you another beer.
@pfd314 If you’ve got computers around sawdust-producing devices, your best bet is a shop vac and only tools with a dust collector and dust port to hook the shop vac to. Could be a whole-shop, massive unit, or just a little vacuum on wheels.
In any case, this thing by itself isn’t going to process enough volume of air to stop the dust from getting into everything. I’d go with a shop vac and a Corsi-Rosenthal box, myself, if exhausting the shop vac outside doesn’t clear enough fine particulates.
I failed in talking myself out of buying it. A quick comparison of other filters shows that it’s at least as effective as others of similar price. The addition of 3 replacement filters tipped it over the edge. That’s a good deal, methinks.
@DKBingham regretfully I am gradually making the same calculation, mostly due to the extra filters and that this unit may actually be pretty good. haven’t clicked yet. in 3…2…1
@DKBingham@pmarin Same here. I slept on it, half thinking they’d be sold out today. But no, so I ordered one. I can’t take the wildfire smoke another summer…
I am amazed that the comments are not all about how UV-B is rather pointless in this application. UV-C would make sense, but UV-B takes far too long to kill much and won’t do anything useful in this airflow.
Specs
Product: Our Happi 1500sqft HEPA Air Purifier with UV Light + 3 Replacement Filters
Model: KJ500-WHT, KJ500-FILTER
Condition: New
What’s Included?
Price Comparison
Air Purifier: $210.00 at Amazon
Replacement Filter: $194.97 for 3 at Amazon
Warranty
90 days
Estimated Delivery
Monday, Jun 5 - Thursday, Jun 8
Purified UV light is so tasty.
I don’t want your happy I want my happy
/youtube edwin hawkins singers Our Happi Day
Shitty “spec”: Purifies up to 1500 sq. ft. every hour at 3.20 cubic feet per minute
If it’s 3.20^3x60 that’s roughly 1966 sq. ft so where’s the 25% loss of efficiency
@thechinglish meh
@thechinglish 3.20 cubic feet is a 3.2ft tall column of air above one square foot of floor space, and it can purify 60 of these per hour. So in this 1500 sqft house, the ceilings must be 3.2x(60/1500)=0.128 feet (about 1.5 inches) above the floor.
That is one big single-serve coffee maker. Still not big enough for the morning meetings with India.
https://en.wikipedia.org/wiki/Residence_time
Calculating how fast a fluid volume can flow through a bottleneck is not mathematically trivial. And in this case the output of the bottleneck goes right back into the volume, so it recirculates air it’s already filtered.
I have no experience with this particular brand, but Costco is selling the BlueAir 121 for about $250 as a promotional deal. I do have a few of those in the house, and love them for the amount of air that they move so quietly, which contributes to more filtration happening.
Not bashing this, or other purifier brands - I just like BlueAir’s products, and filters
@arosiriak I couldn’t find the filters on Costco.com Looks like the BlueAir comes with 2 pre-filters. Looking at the BlueAir website, the filters are $95 ($81 if you subscribe). That’s a bit ouchy for me, especially since I have big, hairy, drooly Newfoundlands.
@DKBingham Newfs are adorable!
Regarding filters, you are correct that they don’t currently offer them on Costco (they come and go), and the subscription from BlueAir can be modified to be a slower pace after you sign up (I have mine come about every 10 months). They are also some of the highest quality filters that I’ve encountered, outside of IQAir, which is an astronomical cost increase. I’m pleased with this as my happy middle ground option.
However, for the pets, the bigger deal would be the fabric pre-filter material, which is machine washable. They also include a couple in the box, so you can swap colors, or just switch while one is being washed. Or you can find alternate colors on the ‘zon if you prefer a better match to your house.
Hope that helps!
With how shitty the air quality has been the last several summers from fires/smoke here in the Pacific Northwest, this looks tempting…
Anyone here used one?
Also,everything on breathehappi.com is “sold out”, including filters. Filters are on Amazon, sold by Sidedeal.com. Hmm…
Did our friends here do some exclusive deal with Happi?
@robson I bought one on Meh a few months ago and I really like it. When I leave it on automatic and cook anything, even toast at times, it ramps up the fan.
@robson: I have one from the last time it was offered. It does a great job clearing occasional smoke leakage from my laser cutter. I also picked up 4 filters from side deal, so I"m good for a couple of years.
The filter fan kicks on high when increased dust/aerosol counts are detected, quickly eliminating them.
In all, I’m quite happy with it.
So when this thing finally dies out, is that called a happy ending?
Breaking News: Happy Hippos suing Happi Hepa
I wonder if this will the first item on meh with zero sales.
this thing filters out all the vitamins
Can this brew decaf air?
@jsh139 nope, and can’t make margaritas either.
Is this one that you throw away after you have used the 3 replacement filters?
@IAMIS Nope… the filters are washable
@IAMIS This is also my concern, but three additional filters should last a long time I think? I’m trying to find any reason to not pull the trigger here
@IAMIS It’s like a condom, you wouldn’t want to use it more than once
As someone who has just bought an overpriced air purifier from home depot and loves it -$50 less than this thing- please someone talk me out of buying this
How do these handle weed smoke?
@aknox077 filters mine out well
Highly effective.
I’m considering getting this for my shed which acts as a workshop (sawdust), server room, and office. It just seems a bit big for 250sqft.
@pfd314 with all that in the air you might want to over spec for the space.
I would use it to get all the ultra fine wood dust. Still use normal dust collection when cutting and sanding.
@lichen @pfd314 server room and sawdust room probably not the best combo.
…unless you are in a redneck bar (not that there’s anything wrong with that) that has sawdust on the floor to absorb spills (along with peanut shells on the floor) — and the server is someone that brings you another beer.
@pfd314 If you’ve got computers around sawdust-producing devices, your best bet is a shop vac and only tools with a dust collector and dust port to hook the shop vac to. Could be a whole-shop, massive unit, or just a little vacuum on wheels.
@gdorn @pfd314
Shop-vac probably won’t get the ultra fine sawdust. That’s what damages lungs.
@lichen @pfd314 That’s why you run the exhaust outside.
In any case, this thing by itself isn’t going to process enough volume of air to stop the dust from getting into everything. I’d go with a shop vac and a Corsi-Rosenthal box, myself, if exhausting the shop vac outside doesn’t clear enough fine particulates.
I failed in talking myself out of buying it. A quick comparison of other filters shows that it’s at least as effective as others of similar price. The addition of 3 replacement filters tipped it over the edge. That’s a good deal, methinks.
@DKBingham regretfully I am gradually making the same calculation, mostly due to the extra filters and that this unit may actually be pretty good. haven’t clicked yet. in 3…2…1
@DKBingham @pmarin Same here. I slept on it, half thinking they’d be sold out today. But no, so I ordered one. I can’t take the wildfire smoke another summer…
@DKBingham you’re lucky. I bought it a month ago and it didn’t come with any extra filters. I’m happy with the device though
I am amazed that the comments are not all about how UV-B is rather pointless in this application. UV-C would make sense, but UV-B takes far too long to kill much and won’t do anything useful in this airflow.
@gdorn Agreed, the UV is a pointless “side benefit” for my use case.
@gdorn In first page description, it says UV-B, but on this page it says UV-C. So I wonder which is it really?
Couldn’t get this thing to make a cup of coffee. User manual is useless.
@PocketBrain Sorri that you are unHappi. Try sprinkling the Coffi grounds in the top of the unit before you add the hot water.