Toilets are a prime way to showcase your event's commitment to lessening your ecological impact. An essential part to any event, composting toilets and waterless toilets are popular alternatives to your conventional toilet (particularly for outdoor events). Waterless toilets are closed units, unconnected to other systems, which accumulate human waste and do not use water to flush the waste. Composting toilets are similar to waterless toilets in that they are also closed units and do not use water but in addition they compost the waste to be used in other settings such as fertilizer for soil.

Other aspects of toilets to consider are the use of recycled toilet paper and the way that users wash up using recycled water.