Active temperature protection
This includes any method of actively controlling temperature using methods such as refrigerated units (reefers), refrigerated shipping boxes, and dry ice. While very effective, users have found that these methods are costly and too tightly controlled by market demand (i.e. influx in spot market rates due to capacity crunch).
Passive temperature protection
Passive temperature protection captures and maintains the existing temperature of the product it is protecting. It requires no energy to perform and is independent of changes in the marketplace. With a variety of insulation properties, users are able to specify the exact type of protection they need.