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Build a do-it-yourself home air purifier for about $25

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Re: Build a do-it-yourself home air purifier for about $25

#162

I built my own air purifier in 2016, living in London, I was living in a basement and was having breathing problems due to mould. My landlady was gaslighting me at the time, so I built the air purifier. It worked for a while but mould spores cling to the paper filter and eventually grow into the filter material. I think Dyson uses glass fiber filter to stop this problem. My filter helped a lot, but eventually I had s…

I was talking to a buddy that does construction work in a pretty wealthy area (Scottsdale, AZ). They are just finishing up a large luxury apartment.

Apparently, the contractor let the drywall get soaked while sitting on palettes during monsoon season, and since the roofing wasn't done there were inches of standing water that resulted in black mold.

They just drywalled right over it. In the US. In 2018. In a luxury condo.

So, you never know what nonsense you will have to put up with.

Re: Build a do-it-yourself home air purifier for about $25

#163
Edit: plants do nothing to particle matter in air they can soak up co2, benzene, formaldehyde etc but do ample resesrch before placing plants in your bedroom. Typically snake plants are fine in bedroom as they don't give out CO2 at night.

There is no need for an air purifier if you have ample light in your room. Just plant a few indoor plants

Peace lily

Rubber plant

Snake plant

Spider plant

Aloe vera

Money plant

Orchid

NASA has done a study in the 80s and these plants have purified a lot of harmful gases including Benzene, formaldehyde, CO etc

Please use more plants!! And on top of that few plants like Snake, Aloe give oxygen during day and night so they are refreshing (as in they don't just clean air they give oxygen as well) and plants are cheaper and require just water and fertilizer every once in a while.

I own 40+ plants in my balcony garden itself. I've experienced these effects first hand!

Re: Build a do-it-yourself home air purifier for about $25

#164

Edit: plants do nothing to particle matter in air they can soak up co2, benzene, formaldehyde etc but do ample resesrch before placing plants in your bedroom. Typically snake plants are fine in bedroom as they don't give out CO2 at night. There is no need for an air purifier if you have ample light in your room. Just plant a few indoor plants Peace lily Rubber plant Snake plant Spider plant Aloe vera Money plant Orch…

Apparently this NASA study needs a huge asterisk next to it.

https://news.ycombinator.com/item?id=18193622

Re: Build a do-it-yourself home air purifier for about $25

#165

Edit: plants do nothing to particle matter in air they can soak up co2, benzene, formaldehyde etc but do ample resesrch before placing plants in your bedroom. Typically snake plants are fine in bedroom as they don't give out CO2 at night. There is no need for an air purifier if you have ample light in your room. Just plant a few indoor plants Peace lily Rubber plant Snake plant Spider plant Aloe vera Money plant Orch…

Apparently this NASA study needs a huge asterisk next to it. https://news.ycombinator.com/item?id=18193622

What? I have read the report myself. They put in Benzene inside a sealed room and one of these plants. A few hours later the Benzene was gone! Absorbed by the plant.

They did the same with formaldehyde too and other harmful substances.

Isn't that the bar for purification? This is still better than mere air dolter that are costly and requore frequent maintenance

Re: Build a do-it-yourself home air purifier for about $25

#166

Edit: plants do nothing to particle matter in air they can soak up co2, benzene, formaldehyde etc but do ample resesrch before placing plants in your bedroom. Typically snake plants are fine in bedroom as they don't give out CO2 at night. There is no need for an air purifier if you have ample light in your room. Just plant a few indoor plants Peace lily Rubber plant Snake plant Spider plant Aloe vera Money plant Orch…

Your advice is somewhat dangerous if people follow it expecting them to magically work. First, the NASA study is for VOCs, not pm2.5. Second, when I briefly looked into using plants to clear VOCs indoors, I found that the number of plants, lights, and air-circulation required is completely impractical. Plants are awesome, I love them, but they're not enough. I wish it wasn't so.

Re: Build a do-it-yourself home air purifier for about $25

#167

I built my own air purifier in 2016, living in London, I was living in a basement and was having breathing problems due to mould. My landlady was gaslighting me at the time, so I built the air purifier. It worked for a while but mould spores cling to the paper filter and eventually grow into the filter material. I think Dyson uses glass fiber filter to stop this problem. My filter helped a lot, but eventually I had s…

Sclerosis from breathing that air? Or did the air only cause the lung infection

Re: Build a do-it-yourself home air purifier for about $25

#168

Important tip: if you set up an air purifier in your home, make sure to plug all drafts around your house: windows, doors, etc. Even a DIY purifier with small airflow can make your indoor air excellent if given enough time to do so and no leaks to fight against. If you want to get some fresh air in your home, do not leave a window half-open all day long—instead, open all your windows at once to cycle the air as fast…

Could you explain? I'm curious why it'd be better to have the air filter going rather than having good airflow from outside via open doors and windows? Are we trying to filter dust/ things produced in the house, or pollutants from things outside the house?

Re: Build a do-it-yourself home air purifier for about $25

#169

I built my own air purifier in 2016, living in London, I was living in a basement and was having breathing problems due to mould. My landlady was gaslighting me at the time, so I built the air purifier. It worked for a while but mould spores cling to the paper filter and eventually grow into the filter material. I think Dyson uses glass fiber filter to stop this problem. My filter helped a lot, but eventually I had s…

In my filter I've UV-C lamp which is turned on and off automatically after some duration.

Re: Build a do-it-yourself home air purifier for about $25

#170
post #113
post #98

Earlier quoted context omitted.

Wirecutter doesn’t have endorsement fees

they don't, although if they recommend you, they'll ask you for a cut of sales (affiliate program). if you say no, they'll switch their recommendation to your competitor and never review your brand again. https://news.ycombinator.com/item?id=16729408

I called out the inherent affiliate bias issue years ago but HN cult tunnel vision didn’t want to hear it and downvote me to hell. Wirecutter is not to be trusted.
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