11–20 of 355 posts
Is there an advantage to attaching the filter to the front of the fan so air is blown through it (as shown in the video) versus taping it to the back of the fan so air is sucked through it? Just curious if that would make any difference. It might be easier to get the filter to stay if it's getting sucked to the fan.
Is there an advantage to attaching the filter to the front of the fan so air is blown through it (as shown in the video) versus taping it to the back of the fan so air is sucked through it? Just curious if that would make any difference. It might be easier to get the filter to stay if it's getting sucked to the fan.
I would guess that it works similar to a water pump- pushing is always more powerful than sucking - but check this out for some detailed analysis (and more data on DIY air filters) https://smartairfilters.com/en/blog/where-should-an-air-filt...
I've been luring the Dyson hot and cool air purifiers, it's pretty silent from what I've heard, it also serves as both an electrical heater during the winter and a cooler during the summer. The price tag is the reason I've never bought one...
> cooler during the summer Where does the heat go?
I have one. It works pretty well. The air filter isn't as good as the massive Austin Air I use for my living room, but it's okay for a smaller room... not to mention much quieter, smaller, and easier to integrate with home automation.
I've been luring the Dyson hot and cool air purifiers, it's pretty silent from what I've heard, it also serves as both an electrical heater during the winter and a cooler during the summer. The price tag is the reason I've never bought one...
> cooler during the summer Where does the heat go?
Earlier quoted context omitted.
Not sure, but I'd think it would also help to keep your fan clean.
I’ve actually built this fan “mod” and when I change out the filter, I’m going to try attaching it to the back instead. With the filter thoroughly taped to the front (nearly airtight), there’s a large amount of blowback. I suspect that this is reducing the overall efficiency of air filtration.
Is there an advantage to attaching the filter to the front of the fan so air is blown through it (as shown in the video) versus taping it to the back of the fan so air is sucked through it? Just curious if that would make any difference. It might be easier to get the filter to stay if it's getting sucked to the fan.
Perhaps strain on the cheap box fan motor as it tries to pull its air through the filter. I've gone through a number of those style of cheap box fans over the years, any kind of long-term resistance very near the intake seems to cause the equally cheap motors harm and shorten their functioning life considerably. I haven't seen the same motor damage problem with resistance added to the exhaust side. In absence of that…
I used to put the high-efficiency filters on my furnace, my HVAC guy said these filters are so heavy that they put a strain on the blower motor. It's better for the motor to use a plain blue fiberglass filter (MSRP $1). You're not really filtering that much out of a closed house, unless you run your forced-air A/C or Heat with the windows open.
I've been luring the Dyson hot and cool air purifiers, it's pretty silent from what I've heard, it also serves as both an electrical heater during the winter and a cooler during the summer. The price tag is the reason I've never bought one...
> cooler during the summer Where does the heat go?
Is there an advantage to attaching the filter to the front of the fan so air is blown through it (as shown in the video) versus taping it to the back of the fan so air is sucked through it? Just curious if that would make any difference. It might be easier to get the filter to stay if it's getting sucked to the fan.
1) If the filter is at the back, since the air is pulled through it, the dirty side is outside where people and kids can touch it as it builds up. If the filter is in the front, the dirty side is inside (towards the fan blade) while the clean side is outside.
2) If the filter is at the back, due to air's resistance it is possible, due to nooks/gaps in the fan, that the some of the air may be pulled from elsewhere and not all the air may pass through the filter. If the filter is in the front, it is easier to seal between the fan and the filter to make sure all air is pushed through it.