Frugal and Energy Efficient Living

but a new replacement filter for that costs about $50! However, I saw some 3-M Filtrete 1000 filters on sale at the local hardware store, bought one and being very careful in taking apart the cardboard trim, I cut the filter and cardboard trim to size so it'd fit within the unit. The 20"X25"x1" filter I bought for $12.50 plus sales tax was large enough to cut into three the size that the portable air filter unit would accept.

Just an idea but some of you may be able to find a portable air cleaner for sale for cheap at a garage sale or thrift store and rather then purchasing the very expensive replacement filters, just purchase a good quality furnace filter when they are on sale and modify it to fit. It will do the job and will look much better then a box fan with a filter duct taped to it.