Suspend SC is a good option for fleas. You would need to mix an IGR (insect growth regulator) with it to make sure the fleas do not reproduce. We would recommend the same with Demize EC. These products should be added to water and directly applied with a gallon sprayer to problem areas such as rugs, carpets, furniture, pet bedding, baseboards, and cracks and crevices
We would recommend using Ultracide. It contains an insecticide, as well as an IGR (insect growth regulator). This will stop the fleas from reproducing. It is safe to spray on your furniture. This will kill the flea larvae and eggs as well as the adult fleas. You will do your first treatment and then vacuum daily for 14 days and do a second treatment. Sometimes a third and/or fouth treatment is necessary.
We would not recommend spraying when the children are in the room. Once the products have had time to dry, 2-4 hours, they can return to the room(s) that have been treated.
Suspend SC does not have an odor.
The main thing to know when dealing with fleas is that there is no overnight fix for them, it can take multiple applications to completely eliminate them sometimes 2-3 treatments or more. You also want to make sure that you are following the instructions on the product labels that you are using. Suspend SC? is not labeled to be used anymore often than once every 21 days. Per the product label for indoor applications, you should also only apply as a coarse, low pressure crack and crevice spot treatment to problem areas and infested habitats. Do not treat entire floor, carpet or floor coverings. Do not apply as a space spray. Application to furniture should be restricted to areas where prolonged contact by humans will not occur. Care should be taken to limit spot treatment to pet beds and infested floor coverings. Suspend SC would not be a good choice for indoor flea control because it can not be used over cracks and crevices only. For indoors, we would highly recommend our Indoor Flea Kit. It is our most popular product for indoor flea control and is usually the final treatment that people end up using that works when they have tried everything else.
There is no valid reason to mix Suspend SC and Lambdastar 9.7% together, it would not make either product work better or produce better results, though it could make treated areas repellent to insects lessening the effectiveness of the treatment.
Suspend SC does not contain an insect growth regulator. Please take a look at the insect growth regulators you can use in conjunction with Suspend SC.
Suspend SC is best applied with a pump sprayer approved for applying pesticides.