Mom sprayed insecticide on my walls, is it safe for my dog to come into my room after 4 days?

i just came back from a business trip that lasted for 4 days, and my mom took the opportunity to spray my room with insecticide(bygone for roaches) while i was away, she sprayed my walls (sprayed 1/4 a can), and left the door opened with the airconditioner & fan on. she used a suitcase to barricade the door of my room to avoid my dogs from getting in. however i'm very concerned that whether if the insecticide that were blown out of my room by the fan will be hazardous to my dogs' health and will it pose any harm to them? it has been 4 days since my mom sprayed my room, and according to my mom the dogs were fine while i wasnt home. they display no abnormalities, however they seem a bit less active, not sure if its about the cooler weather...