yea, check the source... a Wrecks-Air... oops.. I mean Rex-Air (Rainbow) distributer.
"Blows dirt out the back of the canister"... well there is no "Back" of a canister. The only way out of a Filter Queen Majestic is thru the Celluloid (doctors mask) cone filter that extracts dust beyond HEPA (.4 microns) down to the Celluloid's filter of .1 Microns. The filter totally protects the 30,000 RPM precision balanced motor (faster then a jet engine) from any dust that could destroy the motor. Thus, the Majestic gives a lifetime warranty. Does the Rainbow? ABSOLUTELY NOT!!!! Nothing comes close to the Filter Queens product. In quality, construction, or cleaning efficiency. Are they worth it? Whens the last time you bought something that the company only wanted your business ONCE, and one time alone? All Vacuums are designed to fail... the Filter Queen line is built to last a lifetime.