Diy Box Fan Air Filter Front Or Back

The less air that is passing through the fan is less air that puts a load on the blades. Compare that to 8 000 rmb 1 300 for the fancy purifiers here in beijing. You can see this in action by placing something on the back of the fan that completely blocks airflow.

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If the fan were in the exact middle we hypothesize that performance would be equal with the hepa on the front or the back.

Diy box fan air filter front or back. Your total cost for a diy box fan filter can be as low as 40 50 00 including incidentals like duct tape or higher depending on the filter options. Putting the filter on the front or back of the fan should provide the same reductions in particulate as long as the distance from the fan is the same. The more air that passes over the blades is more air that the blades have to push out of the fan. Take the fan put on the feet for stability tape one fancy high rated furnace filter to a lower rated filter then tape those to the back of the fan.

I now ship a simple fan and a filter with a simple upgrade that increases clean air output by 15 over my original design for 228rmb us 37. Insofar as filter changing costs you will find that it is still much cheaper to buy furnace filters and variants of them without sacrificing on quality or air cleaning capacity. The wicked fancy furnace filter that removes bacteria filters dust filters mold filters pollen pleated removes odors each cost 20 and a 3 pack of lower rated filters for 8 total. Total cost for this diy air filter.

The blades will speed up. 5 admire your new diy air purifier.