A calculated factor similar to SPF (Sun Protection Factor). It is a measure of how well a sunscreen or sunblock protects against UV induced suppression of the immune system.

IPF is the "IP Filters" package, used by the BSD family of operating systems to allow fine-grained control over IP traffic (firewalling).

Itanium Processor Family (IPF) indicates the architecture jointly developed by Intel and HP. Itanium is the first member of Intel's new family of 64-bit IPF microprocessors.

Idiopathic Pulmonary Fibrosis. interstitial lung disease of unknown origin. Also known as pulmonary fibrosis.

Inter-governmental Panel on Forests

Intergovernmental Panel on Forests

International Powerlifting Federation

Inpatient psychiatric facility

Instrument Processor Facility

Instrument Processing Facility

Iron pipe found

Independent Production Fund www.ipf.ca

Institute of Public Finance