I've bought one pair of good knight repellent and also its useful for sure but its inimcal for health and causes several deises. so I would like to avoid any type of coil and repellent.
they has pernicious and inisious serious ailing air in which they are using. well I really don't want to mutates my self in ill. so I would never want to use it.
however the add praising there use but they are harmul and noxious mixure of chemical. it may give you garatification for one night but eating you from inside.
I don't found its user friendly at all.
