I have been using odonil lavender air freshener since a long time.Its good product that. Ideal for bathing space, sink, cupboard as it not only obsorbs the bad odour but also acts as a moth repellent.When I bought this packet and used in bathroom.Second day when I opened bathroom a very strong fragrance of lavender came out .I felt like that bathroom is filled with lavenders. One week the fragrance was same.But fragrance of odonil reducing day by day.It actually don't last exactly for 45 days but some where between 10-15 days.I thought that price is on little higher side.But overall its a good but one packet is not Saficiant for 45 or a month.