ALREADY NOT WORKING! JULY 2019 [SEP] PURCHASED IN APRIL. NOT WORKING IN JULY. DOESN'T COME ON WHEN POWER SWITCH FLIPPED. IT SHOWED SIGNS OF POTENTIAL FAILURE FROM THE DAY I RECEIVED IT. SUCTION WAS EXTREMELY WEAK. I HAVE HAD SEVERAL DEVICES THAT WERE CHEAPER WITH MUCH BETTER SUCTION.