Those claims are total speculation and theory. There is no evidence of any motor failures. I have had no troubles at all with the JR filter installed, and the other people I know using them also have had no problems. While the later blowers (94-95) with the factory dust filter are different, it is simply a physical size difference to allow room for the filters (see photos below).

Also, when the HVAC system is in full recirculation mode, the outside air intake is totally blocked off. These filters, even if totally plugged and allowing zero fresh air intake, would simply make the HVAC system operate in full recirculation mode all the time. I would not worry about it at all. The filters are washable, btw.


About a source... here's the reply I received from JR directly:

==============================
Hello
We have no distributor in the USA. We can send the filter directly to
you. Filter 421 is 34.00 euros, + sending cost of 21.00 euros.

Best regards
Corinne Barthod
info@jrfilters.com
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