We take safety very seriously and our fragrances meet a strict standard for regulatory safety, which we enforce through fragrance certification with our vendors. However, fragrances are made of a lot of ingredients, and ours in particular have a lot of natural ingredients that some humans may have allergic reactions to. If it’s a human allergic reaction or medical condition (i.e. COPD) you’re concerned about, unfortunately, we cannot give recommendations about interactions (or lack of interactions) that fragrances may cause to people with medical conditions. Scentsicles products do contain natural tree and other essential oils which may cause an allergic reaction for some people. We cannot guarantee that your specific condition or allergy will not be affected. As far as the safety of your pets is concerned, we know how important that is – we have fur babies too! We advise, and state on our packaging, that our products should be kept out of the reach of children and pets. While our products do contain a bittering agent that should deter any pet or human from eating them, we cannot guarantee every person or pet has the same sensitivity. We recommend following your veterinarian’s guidelines, as well as only using our products in a place your pet cannot easily reach.