PEI-4 Indication for use: All internal environments of the house
PEI-4 Indication for use: Internal environments
PEI-5 Indication for use: Every house and external environments
PEI-5 Indication for use: Internal envarionments
PEI-5 Indication for use: External envarionments
PEI-5 Indication for use: All external environments of the house
PEI-4 Indication for use: Internal and external environments
PEI-4 Indication for use: All external environments of the house