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0 pointslannisterstark2y ago0 comments

Eh, I guess I'll disagree.

Automations allow me to run the purifier at Medium/High speed for certain times a day, even when I am not around. Other than that, they are always on Auto - so they produce minimal noise.

However, certain times a day for period of 15-30 mins or so, they run at Medium/High so they can do certain number of air changes in a room of x SQFT.

Having a 'computer' also allows them to detect when a room suddenly becomes less 'sanitized' and ramp up the 'automatic' to an appropriate level.

0 comments

alpaca1282y ago

Automating based on time has been possible for decades with a simple timer that switches the power for the device. Still no computer necessary. And at least my purifier thinks 100% of the time that the air is perfectly clean no matter what, so in auto mode it would never run anyway.

i5-2520M2y ago

We are working on setting up Home Assistant to react to when we are home or not where I live. We do this based on mac adresses connected to wifi, and this is something that would not be possible without a computer in everything.

paledot2y ago

Note that this method isn't particularly reliable with cell phones since they regularly go into low power mode and disconnect from the network.

7thaccount2y ago

I can do that by just running them in an adjacent room at max for a few hours a day. Pretty simple. I've suffered from massive allergies all my life and hardly ever sneeze now. Getting rid of carpet and getting the air filters were all big quality of life increases. To each their own though. I can see why you might want to do that. I don't like running them when I'm not at home personally.

vintermann2y ago

Indoor environment geeks run their own air purifiers put together from PC fans and oven filters. Apparently PC fans designed for it are much less noisy than the commercial alternatives, so you can run it on constant speed.

I've wanted to try building one myself, but unfortunately even the minimal woodworking required is a bit of a challenge for me.

7thaccount2y ago

What's the MRV of an oven filter? Is there another step on the ladder I'm not aware of?

vintermann2y ago

From what I've seen the indoor climate geeks do recommend prioritizing throughput over filter rating, so they'd rather use a box fan with MERV 13 filters rather than HEPA (which is ~ MERV 17 I think?).

genewitch2y ago

i used a cat litter box and a hot knife, once upon a time

j / k navigate · click thread line to collapse

0 pointslannisterstark2y ago0 comments

Eh, I guess I'll disagree.

Automations allow me to run the purifier at Medium/High speed for certain times a day, even when I am not around. Other than that, they are always on Auto - so they produce minimal noise.

However, certain times a day for period of 15-30 mins or so, they run at Medium/High so they can do certain number of air changes in a room of x SQFT.

Having a 'computer' also allows them to detect when a room suddenly becomes less 'sanitized' and ramp up the 'automatic' to an appropriate level.

0 comments

alpaca1282y ago

i5-2520M2y ago

paledot2y ago

Note that this method isn't particularly reliable with cell phones since they regularly go into low power mode and disconnect from the network.

7thaccount2y ago

vintermann2y ago

I've wanted to try building one myself, but unfortunately even the minimal woodworking required is a bit of a challenge for me.

7thaccount2y ago

What's the MRV of an oven filter? Is there another step on the ladder I'm not aware of?

vintermann2y ago

genewitch2y ago

i used a cat litter box and a hot knife, once upon a time

j / k navigate · click thread line to collapse