This was my first time dealing with bed bugs. It was an immensely unpleasant experience that I had no idea how to deal with. My problem started when my mom bought a livingroom chair infested with the critters from a homeless guy. They were everywhere!I was going to hire an exterminator, but the price was just too much. Note: If one can afford an exterminator, I'd advise one to do so. It's going to take considerable work on one's part to do things correctly in order to rid one's home of these things.I eventually came upon some videos about bug behavior and some of the best ways to rid my home of them. Most advised the use of products containing diatomaceous earth as part of the process. Here are the steps I followed:1. Carefully remove all bedding and place into plastic bags.2. Pour copious amounts of liquid bed bug killer into bag and wash in hot cycle3. Carefully remove the woodwork and apply Harris Bed Bug Killer with included duster then put woodwork back in place.4. Use the duster to also apply product to undersides of mattresses, chairs, and sofas(Note: One does not have to remove the woodwork; however, it was FAR easier to ensure the powder remained undisturbed using this method versus just applying it around the borders of the rooms.)I additionally took caps from Gatorade bottles, sprinkled some powder into them and placed bed, chair, and sofa legs into them as an additional measure. I don't have pets, so this wasn't an issue for me. If one has pets, take the care necessary to protect them.The problem did not end overnight, but within a few weeks after application the bed bugs were completely gone!As of this writing, 13 November 2022, I have had ZERO problems with bed bugs since using this product. Note that the powder applied under the woodwork is still there to this day and likely works as a deterrent against further infestation. That's about as close to set it and forget it as something can be.If one has bed bug problems, this is not a suggestion, one MUST get this product as part of ridding one's home of these terrible creatures.

THIS STUFF WORKS!!!!!!! I GOT RID OF THE BED BUG PROBLEM AND HERE IS HOW I DID IT!!! I got a new bedbug problem because of one of my previous 2 roommates who took over a bedroom in my apartment in quick succession. Soon after, an overnight guest visitor of mine complained promptly of huge rashes. I looked up and sure enough, there were HUGE bed bugs around the mattress. There were smaller bed bugs and almost transparent albino like little bedbugs, which showed they were reproducing. The room was about 9 ft x 12 ft. Before you begin the treatment, always remember to wear work-horse clothes you intend to sully and wash away because small bedbugs or eggs can stick to your clothes and you might unwittingly transport them out of the room to new areas. After every step you might want to head straight to the bathroom, put your clothes in a plastic bag to laundry or put them in scalding hot water for an hour. And then dry them at high temperature to kill any eggs that might have gotten on to your clothes while you were treating the room. 1) I took out the bedsheets and the pillow covers out. I took these pillows and blankets/sheets/bed-covers/pillow covers separately into separate plastic bags outside the house in a shed. They would be put in for washing after 2 weeks. (There is a reason to this - bedbugs start migrating after 5 days of not receiving food and 14 days is enough to starve them for the time being, before taking the bedcovers, sheets, pillow covers and blankets to the laundromat. I will come down to this again later. 2) after a lot of research, I sprayed, using the anti bedbug spray nozzle attached to the gallon, in every single little crevice, in all corners and seams of the mattress and the covers (which I had take over into the plastic cover outside). I also sprayed the bed frame in every little crevice, nook, cranny, joint and fold of the frame. I also sprayed the table and the floors under the bed frame, the walls as well! I left the room as is for the next 2 days. Checked it. Many bedbugs were still alive, but it appeared that they had weakened. 3) REMEMBER THAT THE MATTRESS AND the bed frame must be very dry before you progress to the next step! Now it was time for the diatomaceous earth to do its magic! I took a painstaking 1 whole day, from morning 11am to evening 5pm to work on this treatment. I used the diatomaceous earth GENEROUSLY with the nozzle, to put a huge load of dust into every single seam, corner, above and under the seam, or a fold, around the bed, at the inside above and inside under at the top of perimeter of the mattress and the under perimeter of the mattress. Effectively I had caked every single corner of the seams and folds and crevice of the mattress with the diatomaceous earth. If I found physically big bed bugs, i killed them. I killed every I could get my hands on. Remember every big bug is worth a thousand of the new generation. I used copious amounts of the diatomaceous earth in every book and cranny, crevice and fold of the bed frame, not just the mattress. Same thing for the walls, the study table next to it and even the FLOOR, around the legs, to prevent the bed bugs from migrating and I put huge powder perimeters around the bed and also at the room entrance to stop them from exiting the room and migrating to the living room where we sat for TV... I left the room untouched for about 8-9 days... the results normally say that bedbugs start drying out and dying in just 3 days and most start dying in 5-7 days, the eggs and larvae die out faster when they come in touch with the earth. I treated the room in this procedure with diatomaceous earth for a 2nd time, just in case, and let it alone again for another week. I was nervous if it had worked.... IT HAD WORKED!!!!! I HAD LITERALLY OBLITERATED the whole room with diatomaceous earth everywhere and let it work its magic for 2.5 weeks and now it was a roaring success!! My new flatmate who temporarily stayed in another guest room, upon moving in there, had zero complaints! I looked up the crevices and folds, I could see dead bedbugs dried out and their shells everywhere. This is the second time I have had a great experience with diatomaceous earth. I had done this exact same treatment in the year 2007 and it had worked very well!!!!!!! :) the room is free of bed bugs and i know how to defeat them! I have seen infestations far more serious than mine... I dont know how I'd take care of those. But my current infestation was a new one so it was probably relatively less spread out and easier to defeat. But I've won this battle twice now, once in 2007 and now in 2019! I am a satisfied customer and I know it works! You just have to be really thorough. Going back to the clothes, pillow covers, blankets, sheets, etc, I put them in scalding hot water in a bucket, then took them to the laundry to launder them and dried them at very high heat for 40 minutes. This destroys every bug and egg. The job was well done! My home is still bug free and I didn't sacrifice any furniture or linen or pillows. Good luck!