EXHIBIT 10.169
                                 PROMISSORY NOTE

$100,000                                                    Glendale, California
                                                            January 27, 1999


     FOR VALUE RECEIVED, the undersigned,  Pollution Research and Control Corp.,
a California  corporation  (hereinafter  referred to as the  "Maker"),  with its
address at 506 Paula Avenue, Glendale,  California 91201, agrees and promises to
pay to the order of Mark S. Rose (hereinafter  referred to as the "Holder"),  at
72 West Avenue, Patchogue, New York 11772, or such other place as the Holder may
designate in writing, in coin or currency of the United States of America, which
at the time of payment is legal  tender  for the  payment of public and  private
debts, the principal sum of one hundred thousand  dollars  ($100,000),  together
with interest  thereon at the rate of eleven per cent (11%) per annum,  from the
date hereof until maturity,  as hereinafter  provided.  The principal balance of
this Promissory Note (hereinafter referred to as the "Note"),  together with all
interest then accrued and unpaid, shall be due and payable on May 27, 1999.

     The  Maker  may  prepay  any part or all of this  Note at any time  without
penalty.  Each  payment  or  pre-payment  made by the Maker  hereunder  shall be
applied first to the payment or pre-payment of accrued interest,  if any, due on
the unpaid  principal  balance of this Note and the remainder of each payment or
pre-payment  made by the Maker shall be applied to the  reduction  of the unpaid
principal balance hereof.

     If default is made in the payment of this Note,  as and when the same is or
becomes  due, the Holder may,  after  notice and failure to cure as  hereinafter
provided,  without  additional  notice or  demand,  declare  the  entire  unpaid
principal  balance hereof and accrued and unpaid  interest,  if any, at once due
and payable.

     Except as otherwise  specifically  set out herein,  the Maker waives demand
and presentment for payment, notice of non-payment,  protest, notice of protest,
notice of acceleration of the indebtedness  due hereunder,  bringing of suit and
diligence  in taking any action to collect  amounts  called for  hereunder,  and
agrees that the time of payments  hereof may be extended  without  notice at any
time  and  from  time-to-time,  and for  periods  of time for a term or terms in
excess of the original term without notice or consideration  to, or consent from
the Maker,  without same constituting a waiver of the Holder's rights under this
Note.

     If  payment  is not  received  by the tenth  day after it is due,  then the
Holder  agrees to give  written  notice of such to the Maker.  If payment is not
received  within five days of said  notice,  then the Holder may at his election
accelerate  this Note.  The Holder may charge a late charge of two per cent (2%)
of the amount of the payment received after the tenth day such payment is due.

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     If the entire  outstanding  principal balance becomes due, the Maker agrees
to pay the Holder's reasonable costs (including  reasonable  attorney's fees and
court costs) in  collecting  on this Note,  including  the  reasonable  costs of
obtaining and enforcing a judgment for any balance due on this Note.

     This Note has been  executed  in the City  identified  in the  heading  and
delivered to the Holder at the address stated herein. It is to be performed,  in
whole or in part, in the State of  California,  and the laws of such state shall
govern the validity, construction,  enforcement and interpretation of this Note.
Jurisdiction  and venue for any action  hereunder  shall be in the County of the
City identified in the heading.

     The Maker  represents  that it is duly  authorized  and  empowered to enter
into,  deliver,  perform and be fully bound by all of the terms,  provisions and
conditions of this Note. The Maker also  represents that the making and delivery
of this  Note,  and the  performance  of any  agreement  or  instrument  made in
connection  herewith,  does not conflict with or violate any other  agreement to
which the Maker is a party.

     No  provision  of this  Note  shall  require  the  payment  or  permit  the
collection  of interest in excess of the maximum  permitted  by law,  and in the
event of any such excess,  neither the Maker nor its successors or assigns shall
be  obligated  to pay any such  excess  to the  extent  that it is more than the
amount permitted by law. If an excess amount is received,  charged, collected or
applied as interest,  it shall automatically be made so as to reduce the rate to
that  permitted  by law  and any  excess  interest  then  received,  charged  or
collected  shall be applied to reduce the amount of any  collateral to which the
Holder is entitled.

     In the event that any word,  phrase,  clause,  sentence or other  provision
hereof shall  violate any  applicable  statute,  ordinance or rule of law in any
jurisdiction  in which it is used,  such  provision  shall be ineffective to the
extent of such violation without invalidating any other provision hereof.

     IN  WITNESS  HEREOF,  this  Note is  executed  on the date  and year  above
written.

                                 POLLUTION RESEARCH AND CONTROL CORP.



                                 By:  /s/ Albert E. Gosselin, Jr.
                                      ------------------------------------------
                                          Albert E. Gosselin, Jr., President


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