This passage mainly talks about the reason why vacuum cleaner emit bad smell.

This passage mainly talks about how to clean mattress.

This passage mainly talks about some ways to keep house tide and clean.

This passage mainly talks about how to clean the dust under the bed.

This passage mainly talks about the preparation before using the vacuum cleaner.

This passage mainly talks about the methods of unclogging the hose of vacuum cleaner.

This passage mainly talks about the importance of cleaning the vacuum cleaner in time.

This is a passage mainly talking about seven clever ways to use floor vacuum cleaners.