ThinPrep Pap Test Filter
1990-2017
CAV type 'FS' filter for diesel or petrol, sectioned
1968
Chamberland filter, France, 1875-1884
1875-1884
Harrison Light Correction Meter and Filters
ThinPrep Pap Test Filter by Hologic
1990-2017
Kemira (Class IIb) filters for Silner 12 respirator mask
2 packets of filter paper strips supplied by Carl Schleicher & Schull
Vestigial-sideband filter, from Croydon Transmitting Station, 1955
1955
Celastoid Sample Book
Filter containing N-halamine polystyrene beads
2006-2007
Stereo Filters
1945-1955
Bruel & Kjaer Band Pass Filter Set Type 1615
Wratten Ink Tester
N-halamine modified polystyrene
Unknown plastic item
Power amp filter
Sports drinking bottle containing N-halamine modified polystyrene filter
Four boxes of camera filters
Clear-Therm 3 heat moisture exchanging (HME) filter
2020
No. 1 Valor automatic waste oil filter
30/05/1903
Power amp filter
Audio filter
Set of three "verax" yellow glass filters
Kodacolour Assembly for Cine-Kodak Model B
Power amp filter
Power amp filter
Audio filters
Fuel filter, for Beardmore Heavy Oil diesel engine, from Airship R. 101
1928
Metal filter, part of copper pressure vessel, used by Frederick Power (1853-1927)
1896-1914
Kodacolor Adjustable Filter
Wratten filter, type K3
Three colour filter wheel for additive projection
Selection of Cokin Filters
Power amp filter
Safelight Filter for Enlarger
Filter, sintered glass
1900-1980
Dark red solar filter in threaded eyepiece mount
1800-1850
Kodak Wratten Filter
Three colour filter wheel for cine camera
c. 1910
MicroGard II, spirometer filter
2020-2021
Epidural filter
1995
Blood transfusion filter and drip chamber
1900-1980
Two sintered filters for microfiltration
Kodak Wratten Filter
Kodak Wratten Motion Picture filter
Filter for boiler feed water
1893
K (Class II) Filters for Silner 12 Respirator Mask
Audio filter
Three Colour Filter Units for Durst M800 Spectral Additive Viewer
