July, 2003 -- NEW MICROBIOLOGY PRODUCTS ADDED.

June, 2003 -- NEW PRODUCT LINE: McMillan introduces their new UHP (ultra-high-purity) product line for semiconductor and other microelectronic applications.

April, 2003 - New product line "ADI Diaphragm Pumps" Introduced.

April, 2003 - New product line "PLASTIC FILM SAMPLING BAGS" Introduced.

September 10, 1999 - Contract received for the supply of 55 UCC CM20 Laser Particle Counters for DND Canada.

May 1999 - New Laser CM20
Now accuracy and speed of on-line, portable particle counting can be further assured with the arrival of the new Laser CM20

April 1999 L & H Environmental Inc. introduces its potable water sensor