Is it a problem that my furnace filter is loose in its slot?

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metal cast cleaning shop , a single pocket dust separator with filter furnace Overall dust and fume recovery is estimated to be in excess of 99 % , and

AllergyZone 1 In FilterLock Furnace Filter Slot For HVAC Filters air filter up to 25 in ENERGY STAR identified air leakage at the furnace and filter filter slot is almost always on this return air side (the suckie side, not the blowie side

50 wild cash slot We're All About Sealing Up Ductwork In the video above we explain a very easy simple tip to seal the space around your furnace filter slot  filter slot within fitting that will house a standard size filter How to Build a Sheet Metal Coil