Holding(s) in Company

Porvair PLC
14 July 2003

To: RNS

           SECTION 198 COMPANIES ACT 1985 - 3% NOTIFIABLE INTEREST

We were advised today of the following holding by Henderson Smaller Companies 
Investment Trust plc:
 
Registered owner               No. of shares          % holding

Henderson Smaller Companies        1,050,000               2.85
Investment Trust plc 

From: Porvair plc

                      This information is provided by RNS
            The company news service from the London Stock Exchange
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