Suspected Sydney drug lab blast, man hurt

A man has suffered burns to his face, chest and hands after a suspected clandestine drug lab explosion in Sydney's west.

The 26-year-old was hospitalised in a stable condition after a shed in the backyard of a Marayong home blew up on Saturday morning.

A woman in her 20s was treated at the Blewett Road scene for smoke inhalation and is now speaking to police.