How to Choose a Commercial Disinfectant | Hygiene Direct NZ
How to Choose a Commercial Disinfectant for Your Workplace
Choosing a commercial disinfectant isn't simply a matter of finding the strongest-looking product on the shelf.
Different workplaces have different cleaning requirements, and different disinfectants can vary considerably in their:
- Intended applications
- Dilution rates
- Contact requirements
- Surface compatibility
- Product format
- Documented efficacy
An office, school, commercial kitchen, gym and healthcare facility may all require different approaches to cleaning and disinfection.
The key is to choose a product that is appropriate for the surface, environment and level of disinfection required, then use it according to the manufacturer's instructions.
In this guide, Hygiene Direct explains what New Zealand businesses should consider when choosing a commercial disinfectant and the difference between ready-to-use sprays, concentrates and more specialised disinfectant products.
If you're ready to compare products, browse Hygiene Direct's Disinfectant Sprays & Commercial Disinfectants or explore our complete range of Commercial Cleaning Chemicals. Hygiene Direct currently stocks both ready-to-use and concentrated disinfectant options.
Start With the Application, Not the Product
One of the easiest mistakes when buying cleaning chemicals is starting with the bottle rather than the job.
Instead, ask:
What are we actually trying to clean and disinfect?
Consider:
- The type of facility
- Surfaces being treated
- Level of contamination
- Frequency of cleaning
- Number of areas being cleaned
- Workplace procedures
- Whether the product needs to be ready-to-use
- Whether a concentrate would be more economical
Once you understand the application, choosing the appropriate disinfectant becomes much easier.
Step 1: Understand the Difference Between Cleaning and Disinfecting
Before choosing a disinfectant, it's important to understand that cleaning and disinfecting aren't necessarily the same process.
Cleaning primarily removes:
- Dirt
- Dust
- Grease
- Organic material
- General surface contamination
Disinfecting involves applying an appropriate disinfectant according to its directions to achieve the efficacy specified for that product.
If a surface is visibly dirty, cleaning may need to take place before disinfection.
For a more detailed explanation, read:
[Disinfectant vs Sanitiser: What's the Difference?]
Link this to the first article in this series.
Step 2: Decide Whether You Need Ready-to-Use or Concentrated Disinfectant
This is one of the first practical choices.
Ready-to-Use Disinfectant Sprays
Ready-to-use—or RTU—disinfectants are prepared for their intended application without the operator manually diluting concentrate.
They can be particularly convenient for:
- Offices
- Reception areas
- Shared equipment
- High-touch surfaces
- Smaller workplaces
- Mobile cleaning teams
- Targeted disinfection
Hygiene Direct currently stocks ready-to-use products including SteriGENE GREEN High Level Hospital Disinfectant 500mL RTU, which is supplied pre-diluted at 1:100.
The major advantage is convenience.
There's no need for the operator to calculate dilution each time the product is used.
Step 3: Consider Concentrate for High-Volume Cleaning
For larger commercial facilities, concentrated disinfectants may make more sense.
These can suit:
- Commercial cleaning contractors
- Schools
- Large offices
- Hospitality facilities
- Healthcare environments
- Aged care
- Multi-site businesses
- Other high-volume users
A concentrate allows the operator to prepare working solution according to the manufacturer's specified dilution.
For example, SteriGENE CLEAR High Level Hospital Disinfectant 1L is supplied as a concentrate, with Hygiene Direct's current product information specifying dilution rates of 1:100 for high-risk conditions and 1:200 for lower-risk general-purpose disinfection.
Larger users can also consider products such as SteriGENE CLEAR High Level Hospital Disinfectant 5L.
The important point is:
Follow the specified dilution rather than assuming a stronger mixture will provide a better result.
Step 4: Consider the Type of Workplace
Different workplaces create different cleaning challenges.
Offices and Workplaces
An office may contain:
- Desks
- Door handles
- Kitchens
- Bathrooms
- Meeting rooms
- Shared equipment
- Reception counters
A ready-to-use disinfectant can be convenient for selected high-touch surfaces, while larger facilities may find concentrates more economical for routine cleaning programmes.
Choosing Disinfectant for Schools and Education
Schools have a high number of shared spaces and touch points.
These can include:
- Classroom furniture
- Door handles
- Shared equipment
- Staff rooms
- Bathrooms
- Reception areas
Cleaning teams may need both routine cleaning products and appropriate disinfectants rather than attempting to use one chemical for every task.
SteriGENE's current Hygiene Direct product information specifically lists schools and early childhood environments among its applications.
Choosing Disinfectant for Healthcare and Aged Care
Healthcare and aged-care facilities may have more specialised requirements.
Cleaning teams need to consider:
- Facility procedures
- Required level of disinfection
- Product documentation
- Surface compatibility
- Dilution
- Application method
Hygiene Direct stocks specialist products such as its SteriGENE range. The current product information describes broad-spectrum activity under high-risk conditions and lists medical, hospital and aged-care environments among the applications.
A general-purpose cleaner shouldn't automatically be substituted where a facility's procedures require a specific disinfectant or documented level of efficacy.
Choosing Disinfectant for Hospitality
Hospitality facilities can contain several very different cleaning environments under one roof.
Think about a hotel or restaurant:
Kitchen → dining room → bathroom → reception → accommodation
The appropriate chemical for one area isn't necessarily the right choice for another.
Particular care is required around food-related areas.
Always check:
- Whether the product is appropriate for the application
- Whether surfaces need rinsing
- Dilution instructions
- Contact requirements
- Product approvals where relevant
Choosing Disinfectant for Food Processing
Food processing and manufacturing environments may require specialist products.
For example, Hygiene Direct's Supreme Sanitiser is described specifically for applications including meat and poultry processing, fish processing, bakeries, vegetable processing and beverage production, with NZFSA C38 approval stated in the product information.
This illustrates why product selection matters.
A chemical designed for a particular commercial environment may be a better choice than simply selecting a generic disinfectant spray.
Choosing Disinfectant for Gyms and Fitness Facilities
Gyms have many frequently touched surfaces, including:
- Equipment handles
- Benches
- Counters
- Changing facilities
- Shared equipment
SteriGENE's listed applications include sports and fitness environments.
However, surface compatibility should always be considered.
Repeatedly applying an unsuitable chemical to equipment can potentially affect some materials, so follow the manufacturer's instructions.
Choosing Disinfectant for Veterinary and Animal-Care Facilities
Veterinary facilities, kennels and catteries can have very different disinfection requirements from an ordinary office.
SteriGENE is particularly relevant here because Hygiene Direct's product information lists applications including:
- Veterinary facilities
- Catteries
- Kennels
as well as broader medical and commercial environments.
Again, select the product according to the required application rather than relying purely on the words “commercial disinfectant”.
Step 5: Identify High-Touch Surfaces
Not every surface in a building necessarily needs the same cleaning frequency.
Particular attention is often given to high-touch surfaces.
These can include:
- Door handles
- Handrails
- Light switches
- Lift buttons
- Shared keyboards
- Counters
- Desks
- Taps
- Shared equipment
Identifying these areas allows you to build a more targeted cleaning programme.
We'll cover this subject in detail in the next article:
How to Disinfect High-Touch Surfaces in Commercial Buildings
Step 6: Check Surface Compatibility
This is easily overlooked.
A disinfectant that performs well on one surface may not necessarily be suitable for another.
Commercial facilities can contain:
- Stainless steel
- Plastics
- Glass
- Painted surfaces
- Rubber
- Fabrics
- Timber
- Electronics
- Food-contact surfaces
Check the manufacturer's product documentation before introducing a disinfectant across an entire facility.
This becomes particularly important when a chemical will be used frequently.
Step 7: Check the Required Dilution
Concentrated commercial chemicals should be diluted according to their instructions.
Using too little product may mean you aren't using the chemical as intended.
Using too much can:
- Increase cost
- Waste chemical
- Increase residue
- Potentially affect surfaces
- Create unnecessary chemical exposure
Correct dosing can therefore improve both cleaning consistency and cost control.
Hygiene Direct's wider Commercial Cleaning Chemicals programme also includes chemical selection, SDS support and workplace product guidance.
Step 8: Understand Contact Time
A disinfectant generally needs sufficient time on the surface to achieve its documented performance.
This is commonly referred to as contact time.
A common cleaning mistake is:
Spray → immediately wipe dry → move on
If that doesn't match the manufacturer's directions, the disinfectant may not have been used as intended.
Before introducing a new disinfectant, make sure staff understand:
- How much to apply
- How to apply it
- How long it needs to remain
- Whether the surface needs rinsing afterwards
Step 9: Look at the Product's Documented Efficacy
Don't choose disinfectant purely from marketing terminology.
Look for manufacturer information explaining what the product has been tested or approved for.
For example, Hygiene Direct's SteriGENE product information currently states broad-spectrum activity in high-risk conditions against viruses, mycobacteria, fungi and bacterial organisms and lists MPI 32, MPI 33, AsureQuality and TGA approvals.
Those are meaningful product-specific details.
They shouldn't automatically be applied to every other disinfectant in the category.
When a particular efficacy is required, make sure the individual product you're purchasing actually documents it.
Step 10: Consider Fragrance
Fragrance can be another consideration.
Some environments prefer fragranced products.
Others may prefer unfragranced options.
For example, Hygiene Direct currently offers SteriGENE in:
GREEN – fragranced
and
CLEAR – unfragranced
formats.
An unfragranced option may be preferable in some environments where fragrance isn't desirable.
Step 11: Think About Cost Per Use, Not Just Container Price
A 500mL bottle costing less than a 5L concentrate doesn't necessarily mean it's cheaper to use.
For high-volume commercial cleaning, consider:
purchase price ÷ usable working solution
A concentrate may produce a substantial amount of working solution once correctly diluted.
On the other hand, RTU products can reduce:
- Mixing
- Measuring
- Operator error
- Preparation time
The cheapest option therefore depends on how and where the product is being used.
Step 12: Consider Staff Training
Even an excellent disinfectant won't deliver its intended performance if operators don't know how to use it.
Staff should understand:
- Correct product
- Correct dilution
- Correct surface
- Correct application
- Contact requirements
- Required PPE
- Storage
- What chemicals must not be mixed
This is particularly important where several concentrates are used within the same cleaning cupboard.
Hygiene Direct provides product-selection assistance, Safety Data Sheet support, customised wall charts and staff training as part of its commercial chemical support.
Don't Mix Disinfectants With Other Chemicals
Unless a manufacturer specifically instructs otherwise, don't improvise by combining cleaning chemicals.
Chemical mixing can:
- Create hazardous reactions
- Produce harmful gases
- Damage surfaces
- Affect product performance
Follow the label and Safety Data Sheet.
Professional cleaning should be controlled and repeatable, not experimental.
One Disinfectant Doesn't Necessarily Need to Do Everything
A large commercial facility may be better served by a small, carefully selected chemical system.
For example:
General cleaner
For everyday soil removal.
Ready-to-use disinfectant
For selected high-touch areas.
Concentrated disinfectant
For larger-scale routine applications.
Specialist disinfectant or sanitiser
For environments with specific requirements.
This can be more effective than expecting one chemical to perform every cleaning task.
Ready-to-Use or Concentrate?
A simple way to think about it is:
| Consideration | Ready-to-Use | Concentrate |
|---|---|---|
| Convenience | Excellent | Requires preparation |
| Dilution required | No manual dilution | Yes |
| Small-area cleaning | Excellent | Suitable |
| High-volume use | Can become expensive | Often more economical |
| Mobile cleaning | Convenient | Depends on system |
| Dilution consistency | Pre-prepared | Requires correct dosing |
| Storage | More individual bottles | Concentrate can reduce bulk |
Neither is universally better.
We'll cover this decision fully in the fourth guide in this series:
Ready-to-Use vs Concentrated Disinfectant: Which Is Right for Your Business?
A Simple Commercial Disinfectant Buying Checklist
Before ordering, ask:
- What environment will it be used in?
- What surfaces are being treated?
- What level of disinfection is required?
- What efficacy does the manufacturer document?
- Is it compatible with the surfaces?
- What is the required dilution?
- What is the required contact time?
- Does it need rinsing?
- Would RTU or concentrate be more practical?
- Do staff understand how to use it correctly?
If you can answer those ten questions, you're much less likely to choose the wrong product.
Buy Commercial Disinfectant in New Zealand
Hygiene Direct supplies commercial disinfectants, disinfectant sprays, sanitisers and professional cleaning chemicals for businesses throughout New Zealand.
Disinfectant Sprays & Commercial Disinfectants
Compare Hygiene Direct's range of ready-to-use and concentrated disinfectants. The current category includes a range of commercial disinfectant formats and specialist products.
SteriGENE GREEN High Level Hospital Disinfectant 500mL RTU
A convenient ready-to-use option supplied pre-diluted at 1:100.
SteriGENE CLEAR High Level Hospital Disinfectant 1L
A concentrated high-level disinfectant with Hygiene Direct's product information specifying 1:100 dilution for high-risk conditions and 1:200 for lower-risk general-purpose disinfection.
SteriGENE CLEAR High Level Hospital Disinfectant 5L
A larger concentrated format for higher-volume commercial applications.
Commercial Cleaning Chemicals
Explore Hygiene Direct's wider range of professional chemicals for commercial cleaning.
If you're unsure which disinfectant is right for your facility, contact your local Hygiene Direct branch. Hygiene Direct has branch contacts across New Zealand and offers assistance with product selection and commercial cleaning supply.
He Waka Eke Noa – We Are All in This Canoe Together.
Frequently Asked Questions
What is the best disinfectant for a workplace?
There isn't one disinfectant that's best for every workplace. Consider the environment, surfaces, required efficacy, dilution, contact requirements and manufacturer's documented applications.
Should I use ready-to-use or concentrated disinfectant?
Ready-to-use disinfectant is convenient for targeted and lower-volume use. Concentrates can be more economical for large facilities and commercial cleaners. The right choice depends on usage volume and operating requirements.
What disinfectant should I use in an office?
Choose products appropriate for the surfaces and cleaning procedures in your workplace. A combination of routine cleaners and a suitable disinfectant for selected high-touch areas may be more practical than using disinfectant for every cleaning task.
Can I use a hospital-grade disinfectant in a commercial workplace?
Use any disinfectant according to its documented applications and directions. A specialist disinfectant may be appropriate in some workplaces, but a higher classification isn't automatically necessary for every cleaning task.
Is stronger disinfectant better?
No. Concentrated products should be diluted according to the manufacturer's directions. More chemical doesn't automatically mean better performance.
What should I check before buying commercial disinfectant?
Check intended application, documented efficacy, dilution, contact time, surface compatibility, product format, Safety Data Sheet and whether it suits your workplace's cleaning procedures.
Related Cleaning Guides
- Disinfectant vs Sanitiser: What's the Difference?
- How to Disinfect High-Touch Surfaces in Commercial Buildings
- Ready-to-Use vs Concentrated Disinfectant: Which Is Right for Your Business?
And retain a permanent link back to: