Pests
Signs of pests include droppings, gnaw marks, shed skins, nests, or poets themselves (e.g., cockroaches, ants, mice). Pests can carry and spread diseases (e.g., Hantavirus from rodents, Salmonella from cockroaches). Their presence can also trigger asthma and allergies, particularly from droppings and shed skins.
Optimal
No signs of pests; no droppings, gnaw marks, or nests.
Cautionary
Occasional sighting of a single pest (e.g., one or two ants); a few droppings or signs of gnawing.
Hazardous / Out of Range
Frequent sightings of pests; large amounts of droppings, nests, or significant damage from gnawing.