This is what we used to use in 2 different companies, for servicing printers (and PC's). Its not cheap. 
https://nz.element14.com/scs/497abg-no/electronic-service-vacuum-220vac/dp/2758599?st=ESD-safe+Service+Vacuum

Ive even used 'normal' vacumm cleaners ( those will eventually fail from toner build up ) 

Try Filtercorp, they supplied toner safe solutions  where I used to work , some years back. They might have something .

we use one that looks very similar to the one above but i believe its 3m branded. has a couple of attachments etc.

works well

1101:

 

This is what we used to use in 2 different companies, for servicing printers (and PC's). Its not cheap. 
https://nz.element14.com/scs/497abg-no/electronic-service-vacuum-220vac/dp/2758599?st=ESD-safe+Service+Vacuum

 

That one is listed as 220 volts - not 230-240 volts as is required for NZ.  So if you want to buy it, make sure to ask first that is actually OK for NZ electricity.  A 220 V rating normally means it is for the US market and will be designed for that only, which also implies 60 Hz.  Such devices can overheat (or even catch fire) on NZ 230 volts 50 Hz.

fe31nz:

 

1101:

 

This is what we used to use in 2 different companies, for servicing printers (and PC's). Its not cheap. 
https://nz.element14.com/scs/497abg-no/electronic-service-vacuum-220vac/dp/2758599?st=ESD-safe+Service+Vacuum

 

 

That one is listed as 220 volts - not 230-240 volts as is required for NZ.  So if you want to buy it, make sure to ask first that is actually OK for NZ electricity.  A 220 V rating normally means it is for the US market and will be designed for that only, which also implies 60 Hz.  Such devices can overheat (or even catch fire) on NZ 230 volts 50 Hz.

 

they are fine

element 14 would not be able to sell it if it wasnt designed to be used in nz

Jase2985:

 

they are fine

 

element 14 would not be able to sell it if it wasnt designed to be used in nz

 

Yes they would as they sell to professionals for business use. They sell many things that are not suitable for use in NZ and its up to the buyer to sort it out. Not like kmart or the warehouse who sell to general public.

When things say 220v they are normally 220-240v rated items, and people just take the first one. Its really only things for the asia market that are labled with only 220v.

fe31nz:

1101:

This is what we used to use in 2 different companies, for servicing printers (and PC's). Its not cheap. 
https://nz.element14.com/scs/497abg-no/electronic-service-vacuum-220vac/dp/2758599?st=ESD-safe+Service+Vacuum

That one is listed as 220 volts - not 230-240 volts as is required for NZ.  So if you want to buy it, make sure to ask first that is actually OK for NZ electricity.  A 220 V rating normally means it is for the US market and will be designed for that only, which also implies 60 Hz.  Such devices can overheat (or even catch fire) on NZ 230 volts 50 Hz.