3 ms·
I've built a few of these and compared with higher end air purifiers like Alen. The only downside I could find with the DIY box fans was the power consumption i
by mrtnmcc 5y ago
I've built a few of these and compared with higher end air purifiers like Alen. The only downside I could find with the DIY box fans was the power consumption is much higher.. about 60W vs 6W for the commercial purifier.
That is a $30/yr increased cost in electricity based on CA rates.
- diegocg 5y agoSurely you can use less powerful fans?
- sooheon 5y agoIt's about power efficiency, not total power draw. Use less powerful fans with an inefficient setup and you're not cleaning your air as well. Engineers put thought into chassis design and motor/fan specs. For this same reason I decided to get a used box from a reputable, long lasting company with top of the line CADR, and I can find plenty of aftermarket HEPA filters that are compatible.
- mrtnmcc 5y agoThat was a comparison was roughly for the same air cleaning rate. I think it has to do with the fan architecture. With purpose built purifiers using static pressure fans instead of air fans.