Why my vacuum cleaner does not suck? unmounting instructions please

"Cause 1

Air Filter

The air filter traps particles as the air travels through the vacuum cleaner. If the filter is clogged, the vacuum cleaner will not have proper suction. If your vacuum filter is clogged, refer to your owner’s manual for cleaning instructions.

Cause 2

Exhaust Filter

The exhaust filter traps particles as the air travels through the vacuum cleaner. If the filter is clogged, the vacuum cleaner will not have proper suction. If your vacuum filter is clogged, refer to your owner’s manual for cleaning instructions.

Cause 3

Vacuum Hose

Remove the hose from the vacuum cleaner, stretch out the hose so that it is straight, shine a bright flashlight into one end of the hose, and look through the opposite end of the hose. If the flashlight beam is not visible from the other end of the vacuum hose, this indicates that the vacuum hose is clogged or obstructed."