Progressiverooms has moved to a different Google Site
Items of the Progressiverooms have multiple potency ratings, however, here are the main three:
Safe rating means the item is safe and cannot or rarely will be able to cause any harm or discomfort to individuals.
Neutral rating indicates the item is safe at default but has the capability of causing discomfort or harm if not treated correctly by the individual, this includes any weapon.
Harmful will indicate an item will cause harm at default and has the capability of causing harm and/or discomfort.
There are other classes, here is a complete list of complex classes that are secondary:
Esoteric will indicate the item is unknown to how it fully works and is theorized to work beyond understanding, this includes the Cryptonion which has the capability of moving between dimensions.
Sarmful will indicate the item at default is safe, however attempting to use the item will be futile and will cause it to become harmful but will remain in a ditto state if not used.
Ambiguous is only used on pages that are meant to house more than one item, for example the Item 61 - Banana page has this potency due to some types of Bananas being safe, and some being harmful.
Specific Harmful items mean that the item can be safe for some, and the item can be harmful for some. An example is the Red Banana, which some individuals can die from it, and some do not receive effects.
Like specific harmful, it is an item that may have neutral effects on some individuals, and some may not be affected at all. An example is the Green Banana.